Latest Supernovae

Latest Supernovae

Mirror sites: (Main page) (ASRAS mirror) (ISN Mirror)

All active SN
over mag 17.0

Name Mag Type

2011ja 11.7 IIP

2011iv 13.7 Ia

2012A 13.9 IIP

2011fe 14.6 Ia

2011iy 14.6 Ia

2011ka 14.6 Ia

2012U 14.9 Ia

2012O 15.0 Ia

2012V 15.4 Ia

2011ht 15.5 IIn

2011jl 15.5 Ic

2011js 15.6 IIn

J03220 15.6 unk

2011hr 15.7* Ia

2010jl 15.8 IIn

2012J 15.8 Ib/c

2012W 15.9 II

2011jh 15.9 Ia

2011eg 16.0* IIP

2011im 16.0* Ia

2011jm 16.0 Ic

2012G 16.1 Ia

J07225 16.1 unk

2012P 16.2 IIb

2012I 16.3 Ia

2011jp 16.4* IIP

2011jt 16.4 Ia

2011it 16.5* Ic

2011jo 16.5 IIP

2011ia 16.5 Ia

2012B 16.5 Ia

J15222 16.6 unk

J12304 16.7 LBV

40859. 16.7 unk

J21593 16.9* unk

2012K 16.9 II

2011kb 16.9 IIP

2012E 16.9 Ia

2012H 16.9 Ia

2012N 16.9 Ia

Interested in starting a supernova search?. Please e-mail me.

A long time ago, in a galaxy far far away, a star exploded. This star exploded so violently that for a few weeks the star outshone its parent galaxy. This type of explosion is called a Supernova. The last one in our galaxy was 400 years ago, making us about 300 years overdue for the next one. On this web page you will find a list of the currently observable supernovae, along with information on their location, reference images, and their last reported brightness. Most of the supernova information found on this page comes from IAU and CBET circulars and occasionally more data can be found on IAU's List of Recent Supernovae web page. These web pages have brought you the latest in supernovae data and images since April 1997. 14 years and counting.

. For yesterday's updates, go to the updates page.

People have started to notice that the CBET links no longer ask you for a password.

Created an entry for MASTER OT083221.37+280630.3 (Mag 18.6)

Updated the entries for 2011ja (Radio detection)

Added images of 2012L (Mag 19.5), PSN J03220535-1523156 (Mag 15.8, rapid rise) CSS120118:105924+143218 (Mag 19.8), CSS120121:094613+195028 (Mag 18.2), and PTF11rns (Mag 19.1)

Had the type of 2012L listed as a type II, when (if I had the correct CBET linked) it is really a Type Ia.

News: If you have any images of NGC 4945 (host galaxy of Mag 11.7 2011ja) taken around 2011/12/15 I would be interested in looking at them. Another cool article to read (partially about this page) Supernova Alphabet soup. Does anybody know of a grant that I could apply to for supporting this page? I probably spend about 2 hours a night working on it. We have yet another bright one. 2011iv was found at Mag 12.8, though slightly southern (Decl -35°). 2011ht (was PSN J10081059+5150570) is amazingly bright for an LBV, and was recently reclassified as a Type II. Supernova 2011fe in M101 is Type Ia and appears to now be fading after hitting Mag 9.9. For a list of possible supernova look at Transient Objects Confirmation page. Please note my backup e-mail address: dbishopx at gmail.com For the year 2012, 61 supernovae (23 CBAT, 17 unconfirmed, and 21 other sources) have been reported. (957 last year) The brightest SN of the year is 2012A (Mag 13.6)

New feature I now have a parser which creates a searchable database sorted by RA, sorted by date, and sorted by brightness so that you can see if a supernova has already been reported. To turn off the icons, use this link. Wow, it looks like people really do read this web page, here is a great article that Doug Rich wrote about me. Mike Schwartz of Tenagra Observatories, Ltd. has named Asteroid 1999 RH241 (70401) Davidbishop and 2005 TF152 (149968) Trondal. Extragalactic Novae now have their own page at the top level. I am (re)starting a supernova e-mail list. Please sign up if interested. VSNet is partially back up! LOSS ask people who discover supernovae to provide an offset from a nearby star to make spectroscopy easier.

Three groups are not reporting all of their discoveries to CBAT. Because of this I have active SN (above 18th mag) which have not been given designations by CBAT.
Catalina Real-Time Transient Survey: Supernova page, All discoveries page, Categorized page, MLS search page, SSS search page, Supernova hunt page

ROTSE collaboration: Discoveries page

Palomar Transient Factory, Galaxy Zoo, the hunt for supernovae Discoveries

* - last observation is over one month old.

MASTER OT083221.37+280630.3, ATEL 3898 discovered 2012/01/28.808 by MASTER robotic Net at R.A. = 08h32m21s.37, Decl. = +28°06'30".3 Mag 18.6:1/28, Type unknown (Discovery image)

PSN J03220535-1523156, CBAT TOCP discovered 2012/01/29.150 by Lick Observatory Supernova Search
Found in NGC 1309 at R.A. = 03h22m05s.35, Decl. = -15°23'15".6
Located 15" west and 43" north of the center of NGC 1309 (Discovery image) (Joseph Brimacombe image)
Mag 15.6:1/31 (rising), Type unknown (References: SN 2002fk)

PSN J22225848-6548431, CBAT TOCP discovered 2012/01/28.800 by Berto Monard
Found in IC 5202 at R.A. = 22h22m58s.48, Decl. = -65°48'43".1
Located 17" east and 33" south of the center of IC 5202 (Discovery image) (Confirmation image)
Mag 17.8:1/28, Type unknown

MASTER PGC1376112, ATEL 3891 discovered 2012/01/22.865 by MASTER robotic Net
Found in PGC 1376112 at R.A. = 07h59m17s.19, Decl. = +10°12'06".1
Located 10".4 east and 0".1 north of the center of PGC 1376112 (Discovery image) (Joseph Brimacombe image)
Mag 17.7:1/22, Type unknown

PSN J04502783-0329245 (= SNhunt109), CBAT TOCP discovered 2012/01/26.410 by Catalina Real-Time Transient Survey and Stan Howerton
Found in an anonymous galaxy at R.A. = 04h50m27s.83, Decl. = -03°29'24".5 (near MCG -1-13-16)
Located 1" west and 0" north of the center of the host galaxy (Discovery image) (Confirmation image) (Joseph Brimacombe image)
Mag 18.5:1/30 (18.2:1/26), Type unknown

2012W (= PSN J00500895-0511175) (= SNhunt108), CBAT TOCP discovered 2012/01/26.090 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 268 at R.A. = 00h50m08s.95, Decl. = -05°11'17".5
Located 10".0 west and 18".6 north of the center of NGC 268 (Discovery image) (Confirmation image) (Joseph Brimacombe image)
Mag 15.9:1/29, Type II

PSN J11423452+2628187 (= SNhunt107), CBAT TOCP discovered 2012/01/26.440 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 3826 at R.A. = 11h42m34s.52, Decl. = +26°28'18".7
Located 23" east and 61" south of the center of NGC 3826 (Discovery image) (Joseph Brimacombe image) (Thomas Langhans image)
Mag 19.4:1/28 (19.2:1/26), Type unknown

2012T (= PSN J14014169+3349339), CBET 3005 discovered 2012/01/26.472 by Tim Puckett
Found in NGC 5421 at R.A. = 14h01m41s.69, Decl. = +33°49'33".9
Located 3".5 east and 3".4 south of the center of NGC 5421 (Discovery image) (Joseph Brimacombe image)
Mag 17.4:1/26, Type Ia (References: CBAT TOCP, (CBET 3004 corrected))

2012S (= PSN J01494770+3144496) (= CSS120126:014948+314450), CBET 3003 discovered 2012/01/26.170 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 01h49m47s.70, Decl. = +31°44'49".6
Located 5".3 west and 12".7 north of the center of the host galaxy (Discovery image) (Paolo Corelli image) (Joseph Brimacombe image)
Mag 17.2:1/26, Type IIP (References: CBAT TOCP)

PSN J14185608-2724569, CBAT TOCP discovered 2012/01/17.340 by unknown
Found in an anonymous galaxy at R.A. = 14h18m56s.08, Decl. = -27°24'56".9 (near ESO 511-G26)
Located 15" east and 4" south of the center of the host galaxy (Joseph Brimacombe image)
Mag 17.7:1/17, Type unknown

PSN J14061744+0037390 (= CSS120125:140617+003739), CBAT TOCP discovered 2012/01/25.540 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 14h06m17s.44, Decl. = +00°37'39".0
Located 3" east and 5" south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 18.6:1/26 (18.1:1/25), Type unknown

2012V (= PSN J19471032+5954599), CBET 3008 discovered 2012/01/25.790 by Giancarlo Cortini
Found in NGC 6829 at R.A. = 19h47m10s.32, Decl. = +59°54'59".9
Located 18" east and 36" north of the center of NGC 6829 (Discovery image) (Xing Gao image) (Joseph Brimacombe image) (Bob Koff image) (Tom Krajci image) (Giancarlo Cortini image)
Mag 15.4:1/26, Type Ia (References: CBAT TOCP)

2012O, CBET 2992 discovered 2012/01/18.330 by ROTSE collaboration
Found in NGC 4906 at R.A. = 13h00m39s.99, Decl. = +27°55'24".4
Located 3".1 east and 1".8 south of the center of NGC 4906 (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (JM Llapasset image)
Mag 15.0:1/26, Type Ia

PSN J15222512-3812042, CBAT TOCP discovered 2012/01/21.330 by unknown
Found in ESO 328-46 at R.A. = 15h22m25s.12, Decl. = -38°12'04".2
Located 7" east and 6" south of the center of ESO 328-46
Mag 16.6:1/21, Type unknown

2012P (= PSN J14595904+0153251) (= PTF12os), CBET 2993 discovered 2012/01/22.156 by Fabio Briganti (Italian Supernovae Search Project)
Found in NGC 5806 at R.A. = 14h59m59s.04, Decl. = +01°53'24".4
Located 10" west and 1" south of the center of NGC 5806 (Discovery image) (Discovery page) (Alessandro Dimai image) (Joseph Brimacombe image) (PTF image) (Fabio Martinelli image) (Joseph Brimacombe image) (JM Llapasset image)
Mag 16.2:1/26 (15.0:1/22), Type IIb (was Ib/c) (References: CBAT TOCP, ATEL 3881, 3882, 3884, 3885; SN 2004dg)

MASTER 035135.98+162606.2, ATEL 3875 discovered 2012/01/19.717 by MASTER robotic Net
Found in an anonymous galaxy at R.A. = 03h51m35s.98, Decl. = +16°26'06".2
Located 0" east and 1" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag > 20.0 (18.1:1/19), Type unknown

PTF11kju, ATEL 3874 discovered 2011/08/16.370 by Palomar Transient Factory
Found in NGC 1144 at R.A. = 02h55m11s.98, Decl. = -00°11'01".6
Located 3".3 west and 0".6 north of the center of NGC 1144 (Joseph Brimacombe image)
Mag 17.0:8/16, Type Ia

PTF11kdk, ATEL 3874 discovered 2011/08/05.260 by Palomar Transient Factory
Found in CGCG 170-006 at R.A. = 17h15m32s.29, Decl. = +30°53'36".3
Located 48".8 east and 22".3 north of the center of CGCG 170-006
Mag 18.0:8/5, Type Ia

PTF11klo, ATEL 3874 discovered 2011/08/19.340 by Palomar Transient Factory
Found in ESO 471-G10 at R.A. = 23h46m14s.37, Decl. = -28°05'50".6
Located 9".7 east and 5".4 south of the center of ESO 471-G10
Mag 19.6:8/19, Type Ia

13 supernovae ATEL 3874 discovered by Palomar Transient Factory

PTF11rly discovered 2011/12/27.45 at R.A. = 12h58m17s.01, Decl. = -09°52'00".5 Mag 19.5:12/27, Type Ia (Joseph Brimacombe image)
PTF11rmb discovered 2011/12/27.55 at R.A. = 10h05m26s.35, Decl. = -06°09'24".0 Mag 18.7:1/26 (17.9:12/27), Type Ia (Joseph Brimacombe image)
PTF11rnq discovered 2011/12/27.17 at R.A. = 02h23m22s.71, Decl. = -02°40'37".4 Mag 20.6:1/23 (19.7:12/27), Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11rns discovered 2011/12/27.42 at R.A. = 12h28m10s.75, Decl. = +11°27'54".8 Mag 19.1:1/26, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11rpc discovered 2011/12/29.24 at R.A. = 09h15m47s.00, Decl. = +49°28'20".1 Mag 19.9:12/29, Type Ia (Joseph Brimacombe image)
PTF11rpj discovered 2011/12/28.48 at R.A. = 08h49m39s.21, Decl. = +11°03'29".9 Mag 19.2:12/28, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11rpz discovered 2011/12/29.20 at R.A. = 09h21m58s.02, Decl. = +51°02'25".5 Mag 19.8:12/29, Type Ia (near NGC 2841) (Discovery image) (Joseph Brimacombe image)
PTF12lz discovered 2012/01/06.14 at R.A. = 01h37m16s.90, Decl. = +30°07'14".3 Mag 19.2:1/23, Type Ia (Discovery image) (Joseph Briacombe image)
PTF12mj discovered 2012/01/06.21 at R.A. = 10h25m44s.15, Decl. = +73°42'00".9 Mag > 21.0:1/29 (19.1:01/06), Type Ia (Discovery image) (Joseph Brimacombe image)
PTF12ta discovered 2012/01/17.42 at R.A. = 12h35m02s.53, Decl. = +08°32'38".7 Mag 19.0:1/26, Type Ia (Discovery image) (Joseph Brimacombe image)

33 supernovae ATEL 3873 discovered by Catalina Real-Time Transient Survey

CSS120121:094613+195028 discovered 2012/01/21 at R.A. = 09h46m12s.85, Decl. = +19°50'28".2 Mag 18.1:01/21, Type unknown (Discovery image) (Joseph Brimacombe image)
CSS120119:231949+212438 discovered 2012/01/19 at R.A. = 23h19m49s.17, Decl. = +21°24'38".4 Mag 18.4:01/19, Type unknown (Discovery image)
CSS120118:105924+143218 discovered 2012/01/18 at R.A. = 10h59m23s.52, Decl. = +14°32'17".8 Mag 19.8:1/30 (19.5:01/18), Type unknown (Discovery image) (Joseph Brimacombe image)
CSS120113:134558+323143 discovered 2012/01/13 at R.A. = 13h45m57s.91, Decl. = +32°31'43".3 Mag 18.9:01/13, Type unknown (Discovery image)
CSS120113:075900+270957 (= 2012L)
CSS120104:131903+160943 discovered 2012/01/04 at R.A. = 13h19m02s.83, Decl. = +16°09'43".2 Mag 19.5:01/04, Type unknown (Discovery image)
CSS120101:154353+181209 discovered 2012/01/01 at R.A. = 15h43m52s.51, Decl. = +18°12'09".4 Mag 18.7:01/01, Type unknown (Discovery image)
CSS111230:143658+163057 discovered 2011/12/30 at R.A. = 14h36m57s.53, Decl. = +16°30'56".6 Mag 18.6:12/30, Type Ic (Discovery image) (References: ATEL 3883)
CSS111230:015105+050335 (= PSN J01510522+0503352)
CSS111229:104531+432538 discovered 2011/12/29 at R.A. = 10h45m30s.87, Decl. = +43°25'37".6 Mag 18.9:12/29, Type unknown (Discovery image)
CSS111228:103551+410959 (= TCP J10355100+4109594)
CSS111228:095421-011339 discovered 2011/12/28 at R.A. = 09h54m20s.59, Decl. = -01°13'39".5 Mag 19.2:12/28, Type unknown (Discovery image)
CSS111227:021338-110933 (= PSN J02133780-1109326)
CSS111225:140122+161705 (= PSN J14012159+1617047)
CSS111224:125356+014409 discovered 2011/12/24 at R.A. = 12h53m55s.75, Decl. = +01°44'08".6 Mag 19.2:12/24, Type unknown (Discovery image)
SSS120103:032929-491301 (= PSN J03292940-4913010)
SSS120103:105011-150221 (= PSN J10501145-1502213)
MLS120120:080401+151513 (= PSN J08040080+1515129)
MLS120120:012859+111527 discovered 2012/01/20 at R.A. = 01h28m58s.52, Decl. = +11°15'26".6 Mag 20.0:01/20, Type unknown (Discovery image)
MLS120119:075219+274911 discovered 2012/01/19 at R.A. = 07h52m18s.63, Decl. = +27°49'11".1 Mag 20.6:01/19, Type unknown (Discovery image)
MLS120118:075008+185905 discovered 2012/01/18 at R.A. = 07h50m07s.63, Decl. = +18°59'05".0 Mag 18.8:1/23 (18.7:01/18), Type unknown (Discovery image) (Joseph Brimacombe image)
MLS120118:114727+024324 discovered 2012/01/18 at R.A. = 11h47m26s.94, Decl. = +02°43'24".4 Mag 19.2:01/18, Type unknown (Discovery image)
MLS120104:075718+195732 discovered 2012/01/04 at R.A. = 07h57m18s.30, Decl. = +19°57'32".1 Mag 20.6:01/04, Type unknown (Discovery image)
MLS120101:032446+223327 discovered 2012/01/01 at R.A. = 03h24m46s.28, Decl. = +22°33'26".9 Mag 20.0:01/01, Type unknown (Discovery image)
MLS111228:041353+170348 (= PSN J04135273+1703481)
MLS111228:035911+152547 discovered 2011/12/28 at R.A. = 03h59m10s.64, Decl. = +15°25'46".7 Mag 20.8:12/28, Type unknown (Discovery image)
MLS111228:101134+150649 discovered 2011/12/28 at R.A. = 10h11m33s.69, Decl. = +15°06'49".5 Mag 20.4:12/28, Type unknown (Discovery image)
MLS111227:071633+293258 discovered 2011/12/27 at R.A. = 07h16m32s.94, Decl. = +29°32'58".0 Mag 20.3:1/24 (20.1:12/27), Type unknown (Discovery image) (Joseph Brimacombe image)
MLS111227:080448+173647 discovered 2011/12/27 at R.A. = 08h04m48s.13, Decl. = +17°36'47".3 Mag 20.6:12/27, Type unknown (Discovery image)
MLS111227:124651-055601 discovered 2011/12/27 at R.A. = 12h46m50s.76, Decl. = -05°56'01".0 Mag 20.4:12/27, Type unknown (Discovery image)
MLS111226:225156-023401 discovered 2011/12/26 at R.A. = 22h51m55s.58, Decl. = -02°34'01".3 Mag 19.9:12/26, Type unknown (Discovery image)
MLS111225:113846+035506 discovered 2011/12/25 at R.A. = 11h38m46s.06, Decl. = +03°55'05".6 Mag 19.6:12/25, Type unknown (Discovery image)
MLS111225:125106-000447 discovered 2011/12/25 at R.A. = 12h51m06s.27, Decl. = -00°04'46".8 Mag 19.7:12/25, Type unknown (Discovery image)

2012N (= PSN J14354463+2443415), CBET 2991 discovered 2012/01/21.523 by Tim Puckett
Found in UGC 9396 at R.A. = 14h35m44s.63, Decl. = +24°43'41".5
Located 15".4 west and 8".3 north of the center of UGC 9396 (Discovery image) (Nick James image) (Simone Leonini image) (Joseph Brimacombe image) (AAVSONet image)
Mag 16.9:1/23 (16.5:1/21), Type Ia (References: CBAT TOCP)

2012L (= CSS120113:075900+270957), CBET 2989 discovered 2012/01/13.460 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 07h59m00s.47, Decl. = +27°09'57".1
Located 8".4 west and 13".7 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (Thomas Langhans image)
Mag 19.5:1/28 (18.7:1/13), Type Ia

2012M (= PSN J14565985+2435595), CBET 2990 discovered 2012/01/20.139 by Alessandro Dimai (Italian Supernovae Search Project)
Found in PGC 53433 at R.A. = 14h56m59s.85, Decl. = +24°35'59".5
Located 8" west and 25" south of the center of PGC 53433 (Discovery image) (L. Elenin image) (Joseph Brimacombe image)
Mag 17.0:1/20, Type Ia (References: CBAT TOCP)

TCP J15063158+0926356 (= SNhunt106), CBAT TOCP discovered 2011/12/30.540 by Catalina Real-Time Transient Survey and Stan Howerton
Found in UGC 9708 at R.A. = 15h06m31s.56, Decl. = +09°26'35".6
Located 13" west and 23" south of the center of UGC 9708 (Discovery image) (Confirmation image) (Joseph Briamcombe image) (Federica Luppi and Luca Buzzi image)
Mag 19.4:1/20, Type unknown

PSN J08040080+1515129 (= MLS120120:080401+151513), CBAT TOCP discovered 2012/01/20.330 by Catalina Real-Time Transient Survey
Found in PGC 22633 at R.A. = 08h04m00s.80, Decl. = +15°15'12".9
Located 12" west and 3" north of the center of PGC 22633 (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (Stan Howerton image) (Thomas Langhans image)
Mag 19.2:1/28 (18.1:1/20), Type unknown

2012G (= MASTER PGC042367), CBET 2983 discovered 2012/01/14.370 by ROTSE collaboration
Found in anonymous galaxy at R.A. = 12h39m35s.1, Decl. = +16°35'11".9
Located 10".7 west and 4".3 south of the center of anonymous galaxy (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (MASTER image) (Stan Howerton image) (JM Llapasset image)
Mag 16.1:1/28 (15.8:1/21), Type Ia (References: ATEL 3876)

2012U (= PSN J02060433-5511375), CBET 3007 discovered 2012/01/20.450 by Peter Marples (BOSS)
Found in ESO 153-20 at R.A. = 02h06m04s.33, Decl. = -55°11'37".5 (= PGC 8012)
Located 8" east and 0" north of the center of ESO 153-20 (Discovery image) (Greg Bock image) ( image)
Mag 14.9:1/20, Type Ia (References: (CBET 3006 corrected) CBAT TOCP)

PSN J02292569-4304517 (= SNhunt105), CBAT TOCP discovered 2012/01/18.490 by Catalina Real-Time Transient Survey and Stan Howerton
Found in IC 1810 at R.A. = 02h29m25s.69, Decl. = -43°04'51".7
Located 13" west and 17" south of the center of IC 1810 (Discovery image)
Mag 18.0:1/18, Type unknown

MASTER 013902.45+613055.6, ATEL 3870 discovered 2012/01/13.876 by MASTER robotic Net at R.A. = 01h39m02s.45, Decl. = +61°30'55".6 Mag 18.7:1/19 (17.1:1/13), Type unknown (Discovery image) (Joseph Brimacombe image)

2012I (= PSN J02582783+0611253) (= CSS120118:025828+061125), CBET 2985 discovered 2012/01/18.170 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 02h58m27s.83, Decl. = +06°11'25".3
Located 1".6 east and 6".4 south of the center of the host galaxy (Discovery image) (Paolo Corelli image) (Stan Howerton image) (JM Llapasset image)
Mag 16.3:1/18, Type Ia (References: CBAT TOCP)

PSN J10525661-3256071 (= SNhunt104), CBAT TOCP discovered 2012/01/16.690 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 3449 at R.A. = 10h52m56s.61, Decl. = -32°56'07".1
Located 37" east and 28" south of the center of NGC 3449 (Discovery image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 18.8:1/28 (17.9:1/18), Type unknown

PSN J07225346-6202360 (= SNhunt103), CBAT TOCP discovered 2012/01/16.630 by Catalina Real-Time Transient Survey and Stan Howerton
Found in ESO 123-9 at R.A. = 07h22m53s.46, Decl. = -62°02'36".0
Located 21" east and 52" south of the center of ESO 123-9 (Discovery image)
Mag 16.1:1/16, Type unknown

2012Q (= PSN J06462664-3653134), CBET 2994 discovered 2012/01/14.130 by CHASE
Found in ESO 366-18 at R.A. = 06h46m26s.64, Decl. = -36°53'13".4
Located 0".6 east and 1".8 north of the center of ESO 366-18 (Joseph Brimacombe image)
Mag 17.0:1/14, Type Ic (References: CBAT TOCP)

2012E (= PSN J02332279+0935056), CBET 2981 discovered 2012/01/14.142 by L. Cox, Jack Newton, and Tim Puckett
Found in NGC 975 at R.A. = 02h33m22s.79, Decl. = +09°35'05".6
Located 1".04 east and 60".5 south of the center of NGC 975 (Discovery image) (Paolo Corelli image) (William Wiethoff image) (Federica Luppi and Luca Buzzi image) (Nick James image) (Denis Buczynski image) (Andrea Mantero image) (Giancarlo Cortini image) (Joseph Brimacombe image) (Stan Howerton image) (JM Llapasset image) (Aurelio Grillo image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 16.9:1/28 (15.8:1/20), Type Ia (References: CBAT TOCP)

2012D (= PSN J12583711+2710252) (= SNhunt102), CBET 2980 discovered 2012/01/13.470 by Catalina Real-Time Transient Survey and Stan Howerton
Found in PGC 44486 at R.A. = 12h58m37s.11, Decl. = +27°10'25".2 (= CGCG 160-67, in Abell 1656)
Located 2".3 west and 10".6 south of the center of PGC 44486 (Discovery image) (Leonid Elenin image) (Joseph Brimacombe image) (Giancarlo Cortini image) (Federica Luppi and Luca Buzzi image) (Stan Howerton image)
Mag 17.1:1/28, Type IIP (References: CBAT TOCP)

2012H, (= PSN J05201494-2518563), CBET 2984 discovered 2012/01/10.160 by CHASE
Found in IC 411 at R.A. = 05h20m14s.94, Decl. = -25°18'56".3
Located 49".7 west and 31".6 north of the center of IC 411 (Stan Howerton image) (Leonid Elenin image) (Joseph Brimacombe image) (José Luis Perán Fernández image) (Manuel Díaz image)
Mag 16.9:1/19 (16.7:1/14), Type Ia (References: CBAT TOCP)

PSN J12355230+2755559, CBET 2976 discovered 2012/01/11.250 by Lick Observatory Supernova Search
Found in NGC 4559 at R.A. = 12h35m52s.30, Decl. = +27°55'55".9
Located 71" west and 103" south of the center of NGC 4559 (Discovery image) (Leonid Elenin image) (Simone Leonini image prediscovery) (Joseph Brimacombe image) (Giancarlo Cortini image) (Joseph Brimacombe image) (Mantero Andrea image)
Mag 18.2:1/15 (16.7:1/11), Type LBV (References: ATEL 3865, CBAT TOCP, SN 1941A)

2012K (= MASTER PGC002065), CBET 2987 discovered 2012/01/08.502 by MASTER robotic Net
Found in PGC 2065 at R.A. = 00h34m30s.79, Decl. = +30°24'06".3
Located 13".9 east and 15".7 north of the center of PGC 2065 (Discovery image) (Joseph Brimacombe image) (Giancarlo Cortini image) (Stan Howerton image) (Paolo Corelli image) (Joseph Brimacombe image) (William Wiethoff image)
Mag 16.9:1/14 (16.0:1/8), Type II (References: ATEL 3859)

2012B (= PSN J03513452+3704427), CBET 2978 discovered 2012/01/08.203 by Jack Newton and Tim Puckett
Found in MCG +6-9-10 at R.A. = 03h51m34s.52, Decl. = +37°04'42".7 (= PGC 13981)
Located 5".03 east and 7".6 south of the center of MCG +6-9-10 (Discovery image)
Mag 16.5:1/23, Type Ia (References: CBAT TOCP)
2012B images sub-page

2012A (= PSN J10250739+1709146), CBET 2974 discovered 2012/01/07.387 by B. Moore, Jack Newton, and Tim Puckett
Found in NGC 3239 at R.A. = 10h25m07s.39, Decl. = +17°09'14".6
Located 24".65 east and 16".1 south of the center of NGC 3239 (Discovery image)
Mag 13.9:1/29 (13.6:1/14), Type IIP (References: ATEL 3855, 3857, 3860, 3861, 3863, CBET 2975 CBAT TOCP)
2012A images sub-page

MASTER140859.07+255012.0, ATEL 3854 discovered 2012/01/04.941 by MASTER robotic Net
Found in an anonymous galaxy at R.A. = 14h08m59s.07, Decl. = +25°50'12".0
Located 0" east and 0" north of the center of the anonymous galaxy (Joseph Brimacombe image) (Thomas Langhans image)
Mag 16.7:1/13, Type unknown

2011ju - 2011jw CBET 2971 discovered by Catalina Real-Time Transient Survey

2011ju (= CSS111225:081044+402530) discovered 2011/12/25.35 at R.A. = 08h10m43s.55, Decl. = +40°25'29".6 Mag 20.4:1/13 (19.2:12/25), Type Ia (Discovery image) (Joseph Brimacombe image)
2011jv (= CSS111227:044803-040823) discovered 2011/12/27.27 at R.A. = 04h48m02s.55, Decl. = -04°08'22".6 Mag 18.8:1/14 (18.6:1/6), Type Ia (Discovery image) (Joseph Brimacombe image) (Paolo Corelli image)
2011jw (= CSS111227:104742+021815) discovered 2011/12/27.50 at R.A. = 10h47m41s.70, Decl. = +02°18'15".4 Mag 20.0:1/8 (19.3:12/27), Type Ia (Discovery image) (Joseph Brimacombe image)

2012R (= PSN J14211421-3613107), CBET 2998 discovered 2012/01/05.320 by CHASE
Found in ESO 385-012 at R.A. = 14h21m14s.21, Decl. = -36°13'10".7
Located 16" east and 25" north of the center of ESO 385-012 (Joseph Briacombe image) (Joseph Briacombe image)
Mag 18.2:1/11 (17.1:1/5), Type II (References: CBAT TOCP)

MASTER OT103717.83+505934.2, ATEL 3847 discovered 2012/01/03.878 by MASTER robotic Net at R.A. = 10h37m17s.83, Decl. = +50°59'34".2 Mag 19.7:1/7 (19.2:1/3), Type unknown (Joseph Brimacombe image)

2011jy, (= MASTER OT105357.03+232234.5), CBET 2988 discovered 2011/12/30.792 by MASTER robotic Net
Found in an anonymous galaxy at R.A. = 10h53m57s.03, Decl. = +23°22'34".5
Located 0" east and 0" north of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image) (Thomas Langhans image)
Mag 17.9:1/17 (16.5:12/30), Type II (References: ATEL 3847

2012C (= PSN J09373048+3250315), CBET 2979 discovered 2012/01/04.177 by Doug Rich
Found in NGC 2926 at R.A. = 09h37m30s.48, Decl. = +32°50'31".5
Located 7" west and 3" north of the center of NGC 2926 (Discovery image) (Joseph Brimacombe image) (Leonid Elenin image) (Giancarlo Cortini image) (Leonid Elenin image) (Federica Luppi and Luca Buzzi image) (Martin Mobberley image) (Paolo Corelli image) (Joseph Brimacombe image) (Joseph Brimacombe image) (William Wiethoff image)
Mag 17.7:1/19 (16.6:1/5), Type Ic (References: CBAT TOCP)

PSN J16092659+6422447, CBAT TOCP discovered 2012/01/04.970 by Zhangwei Jin and Xing Gao
Found in CGCG 320-007 at R.A. = 16h09m26s.59, Decl. = +64°22'44".7
Located 11".2 east and 1".7 north of the center of CGCG 320-007 (Discovery image) (Joseph Brimacombe image) (Thomas Langhans image) (Joseph Brimacombe image) (Thomas Langhans image) (Thomas Langhans image)
Mag 17.4:1/28 (17.2:1/13), Type unknown

PSN J13240095+0942529 (= SNhunt101), CBAT TOCP discovered 2012/01/04.440 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 5125 at R.A. = 13h24m00s.95, Decl. = +09°42'52".9
Located 4" east and 16" north of the center of NGC 5125 (Discovery image) (Faulkes Telescope image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 19.2:1/11 (18.6:1/6), Type unknown (References: SN 1997co)

2012F (= PSN J00331954+0348174) (= CSS120104:003320+034817), CBET 2982 discovered 2012/01/04.110 by Catalina Real-Time Transient Survey at R.A. = 00h33m19s.54, Decl. = +03°48'17".4 Mag 17.3:1/5, Type Ic (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (References: CBAT TOCP)

PSN J10501145-1502213 (= SSS120103:105011-150221), CBAT TOCP discovered 2012/01/03.670 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 10h50m11s.45, Decl. = -15°02'21".3
Located 1" east and 15" south of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image)
Mag 19.4:1/4 (18.9:1/3), Type unknown

PSN J03292940-4913010 (= SSS120103:032929-491301), CBAT TOCP discovered 2012/01/03.520 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 03h29m29s.40, Decl. = -49°13'01".0
Located 6" west and 7" south of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.8:1/4, Type unknown

2012J (= PSN J14562364-3736180), CBET 2986 discovered 2012/01/02.080 by Berto Monard
Found in ESO 386-39 at R.A. = 14h56m23s.64, Decl. = -37°36'18".0
Located 20" west and 16" south of the center of ESO 386-39 (Discovery image) (Confirmation image) (Joseph Brimacombe image) (Berto Monard image) (Berto Monard image) (Joseph Brimacombe image)
Mag 15.8:1/6, Type Ib/c (References: CBAT TOCP)

PSN J10053668+0416484 (= SNhunt100), CBAT TOCP discovered 2012/01/01.470 by Catalina Real-Time Transient Survey and Stan Howerton
Found in UGC 5440 at R.A. = 10h05m36s.68, Decl. = +04°16'48".4
Located 13" east and 3" north of the center of UGC 5440 (Discovery image) (Joseph Brimacombe image)
Mag 19.3:1/2, Type unknown

2011js (= PSN J02480496-1357511) (= SNhunt99), CBET 2969 discovered 2011/12/31.160 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 1103 at R.A. = 02h48m04s.96, Decl. = -13°57'51".1
Located 15".2 west and 17".9 south of the center of NGC 1103 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 15.6:1/20, Type IIn (References: CBAT TOCP)

PSN J22161124+2754248 (= SNhunt98), CBAT TOCP discovered 2011/12/31.070 by Catalina Real-Time Transient Survey and Stan Howerton
Found in MCG +5-52-6 at R.A. = 22h16m11s.24, Decl. = +27°54'24".8
Located 6" west and 4" north of the center of MCG +5-52-6 (Discovery image) (Joseph Brimacombe image) (William Wiethoff image) (Stan Howerton image)
Mag 17.4:1/14 (17.2:12/31), Type unknown

2011jt (= PSN J14532301+0257431) (= CSS111231:145323+025743), CBET 2970 discovered 2011/12/31.540 by Catalina Real-Time Transient Survey
Found in an CGCG 48-051 at R.A. = 14h53m23s.01, Decl. = +02°57'43".0 (= PGC 53208)
Located 5".8 west and 16".4 south of the center of CGCG 48-051 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image color)
Mag 16.4:1/5, Type Ia (References: CBAT TOCP)

PTF11rks, ATEL 3841 discovered 2011/12/21 by Palomar Transient Factory at R.A. = 01h39m45s.50, Decl. = +29°55'27".0 Mag 18.9:1/1 (18.5:12/30), Type I-pec (Discovery image) (Joseph Brimacombe image)

5 supernovae ATEL 3840 discovered by Palomar Transient Factory

PTF11qju discovered 2011/11/17.55 at R.A. = 14h15m27s.01, Decl. = +36°24'31".0 Mag 18.9:11/17, Type II (Joseph Brimacombe image)
PTF11qvc discovered 2011/11/23.46 at R.A. = 13h20m53s.60, Decl. = +42°49'01".6 Mag 19.1:1/2, Type Ia (Joseph Brimacombe image)
PTF11rem discovered 2011/12/08.14 at R.A. = 23h53m45s.77, Decl. = -10°33'51".0 Mag 18.3:12/08, Type Ia (Joseph Brimacombe image)
PTF11rkd discovered 2011/12/21.11 at R.A. = 01h32m49s.46, Decl. = -00°08'33".3 Mag 19.9:12/21, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11rke discovered 2011/12/21.11 at R.A. = 01h32m53s.51, Decl. = -00°31'35".2 Mag 18.9:12/21, Type Ia (Discovery image) (Joseph Brimacombe image)

LSQ11jw, ATEL 3838 discovered 2011/12/18.6 by La Silla-QUEST at R.A. = 02h04m47s.40, Decl. = +00°50'06".0 Mag 20.9:12/15, Type Ic (Joseph Brimacombe image)

2011kb (= PSN J07211428-6205308), CBET 2997 discovered 2011/10/08 by Berto Monard
Found in an anonymous galaxy at R.A. = 07h21m14s.27, Decl. = -62°05'30".7 (near NGC 2369B)
Located 8" east and 4" north of the center of the anonymous galaxy (Berto Monard image) (Berto Monard image) (Berto Monard image) (Berto Monard image) (Berto Monard image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 16.9:1/5 (16.8:11/7), Type IIP (References: CBAT TOCP)

2011ka (= PSN J05142826-6210190), CBET 2996 discovered 2011/12/29.889 by Berto Monard
Found in ESO 119-46 at R.A. = 05h14m28s.26, Decl. = -62°10'19".0
Located 10" west and 5" south of the center of ESO 119-46 (Discovery image) (Confirmation image) (Berto Monard image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Berto Monard) (Stu Parker image prediscovery) (Berto Monard image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 14.6:1/11 (14.5:1/2), Type Ia (References: CBAT TOCP)

PSN J01510522+0503352 (= CSS111230:015105+050335), CBAT TOCP discovered 2011/12/30.130 by Catalina Real-Time Transient Survey at R.A. = 01h51m05s.21, Decl. = +05°03'35".2 Mag 18.1:12/31, Type unknown (Discovery image) (Robert Koff image) (Joseph Brimacombe image)

2011jx (= PSN J10290876+4604576) (= CSS111229:102909+460458), CBAT TOCP discovered 2011/12/29.400 by Catalina Real-Time Transient Survey at R.A. = 10h29m08s.76, Decl. = +46°04'57".5 Mag 17.9:1/4, Type Ia (1N) (Discovery image) (Robert Koff image) (Joseph Brimacombe image)

TCP J10355100+4109594 (= CSS111228:103551+410959), CBAT TOCP discovered 2011/12/28.400 by Catalina Real-Time Transient Survey at R.A. = 10h35m51s.00, Decl. = +41°09'59".4 Mag 17.6:12/28, Type unknown (1N) (Discovery image) (Joseph Brimacombe image) (Robert Koff image)

PSN J02133780-1109326 (= CSS111227:021338-110933), CBAT TOCP discovered 2011/12/27.170 by Catalina Real-Time Transient Survey at R.A. = 02h13m37s.79, Decl. = -11°09'32".5 Mag 18.3:12/27, Type unknown (Discovery image) (William Wiethoff image)

PSN J14012159+1617047 (= CSS111225:140122+161705), CBAT TOCP discovered 2011/12/25.500 by Catalina Real-Time Transient Survey at R.A. = 14h01m21s.59, Decl. = +16°17'04".6 Mag 18.2:1/2, Type unknown (Discovery image) (Joseph Brimacombe image)

PSN J04135273+1703481 (= MLS111228:041353+170348) (= MASTER 041352.74+170348.3), CBAT TOCP discovered 2011/12/28.200 by Catalina Real-Time Transient Survey at R.A. = 04h13m52s.72, Decl. = +17°03'48".0 Mag 17.6:1/21, Type unknown (7E 9S) (Discovery image) (Robert Koff image) (Stan Howerton image) (William Wiethoff image) (Joseph Brimacombe image) (MASTER image) (References: ATEL 3875)

LSQ11ec, ATEL 3832 discovered 2011/12/15.049 by La Silla-QUEST at R.A. = 02h23m30s.90, Decl. = -02°51'37".9 Mag 20.1:12/15, Type Ia (Joseph Brimacombe image)

2011jq (= PSN J05164155+0629302) (= LSQ11pn), CBET 2973 discovered 2011/12/27.2 by F. Ciabattari and E. Mazzoni (Italian Supernovae Search Project); La Silla-QUEST
Found in an anonymous galaxy at R.A. = 05h16m41s.54, Decl. = +06°29'30".2 (near MCG +1-14-15)
Located 0" east and 7" south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 18.1:12/27, Type Ia (References: ATEL 3838, CBAT TOCP)

2011jp (= PSN J02580760-1021541), CBET 2965 discovered 2011/12/27.552 by Greg Bock (BOSS)
Found in NGC 1154 at R.A. = 02h58m07s.59, Decl. = -10°21'54".0
Located 1" west and 7" south of the center of NGC 1154 (Discovery image) (Roger Groom confirmation image) (Leonid Elenin image) (Joseph Brimacombe image) (Stan Howerton image) (William Wiethoff image) (Joseph Brimacombe image)
Mag 16.4:12.31 (15.5:12/27), Type IIP (References: CBAT TOCP)

2011jn (= PSN J12571479-1724005) (= SSS111226:125715-172401), CBET 2963 discovered 2011/12/26.720 by Catalina Real-Time Transient Survey
Found in PGC 44257 at R.A. = 12h57m14s.78, Decl. = -17°24'00".5
Located 45".8 east and 33".7 north of the center of PGC 44257 (Discovery image) (Joseph Brimacombe image) (Federica Luppi image) (Leonid Elenin image)
Mag 17.0:12/26, Type Ia (References: CBAT TOCP; SN ROTSE3 J125708.9-172527)

2011jr (= PSN J07063992+2353370), CBET 2968 discovered 2011/12/25.243 by Jack Newton and Tim Puckett
Found in UGC 3676 at R.A. = 07h06m39s.91, Decl. = +23°53'37".0
Located 2".47 west and 0".1 south of the center of UGC 3676 (Discovery image) (Joseph Brimacombe image) (Leonid Elenin image unconfirmed) (William Wiethoff image) (Joseph Brimacombe image)
Mag 17.1:12/29, Type Ia (References: CBAT TOCP)

LSQ11gw ATEL 3828 discovered 2011/12/23.075 by La Silla-QUEST at R.A. = 05h19m37s.20, Decl. = +00°49'39".0 Mag 18.0:12/27, Type II (William Wiethoff image) (Joseph Brimacombe image)

LSQ11ne ATEL 3827 discovered 2011/12/14.043 by La Silla-QUEST at R.A. = 01h55m39s.59, Decl. = -07°30'25".0 Mag 18.7:12/27, Type Ia (Joseph Brimacombe image)

2011ji (= MLS111128:090821+163337), CBET 2954 discovered 2011/11/28.41 by Catalina Real-Time Transient Survey at R.A. = 09h08m21s.16, Decl. = +16°33'37".1 Mag 18.9:12/24 (17.9:11/28), Type Ia (Discovery image) (Joseph Brimacombe image) (References: ATEL 3795)

LSQ11ot, ATEL 3826 discovered 2011/12/23.068 by La Silla-QUEST
Found in CGCG 421-013 at R.A. = 05h15m48s.29, Decl. = +06°46'39".0
Located 0" east and 0" north of the center of CGCG 421-013 (William Wiethoff image) (William Wiethoff image)
Mag 18.3:12/23, Type Ia

2011jm (= TCP J12545110+0239149), CBET 2962 discovered 2011/12/24.490 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 4809 at R.A. = 12h54m51s.09, Decl. = +02°39'14".8
Located 0".6 east and 0".2 north of the center of NGC 4809 (Discovery image) (Confirmation image) (Stan Howerton image) (Joseph Brimacombe image) (Stan Howerton image) (Joel Nicolas image) (Federica Luppi image) (JM Llapasset image) (Stan Howerton image)
Mag 16.0:1/28 (14.8:12/24), Type Ic (References: CBAT TOCP)

2011jd (= CSS111119:002254+135222), CBET 2949 discovered 2011/11/19.17 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 00h22m54s.27, Decl. = +13°52'22".4
Located 0".2 east and 2".2 north of the center of the anonymous galaxy (Discovery image) (Stan Howerton image) (William Wiethoff image) (Joseph Brimacombe image)
Mag 18.8:12/27 (18.1:11/27), Type Ia (References: ATEL 3795)

2011jo (= PSN J00083457-3351148), CBET 2964 discovered 2011/12/22.431 by Stu Parker
Found in NGC 10 at R.A. = 0h08m34s.57, Decl. = -33d51'14".8
Located 2" east and 16" north of the center of NGC 10 (Discovery image) (Confirmation image) (Leonid Elenin image) (Joseph Brimacombe image) (Greg Bock image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Berto Monard image prediscovery) (Joseph Brimacombe image) (Berto Monard image) (Joseph Brimacombe image)
Mag 16.5:1/4 (16.3:1/2), Type IIP (References: CBAT TOCP)

2011jh, (= PSN J12471442-1003473), CBET 2953 discovered 2011/12/22.784 by Yoji Hirose
Found in NGC 4682 at R.A. = 12h47m14s.42, Decl. = -10°03'47".2
Located 18" west and 1" north of the center of NGC 4682 (Discovery image) (Yoji Hirose image) (T. Noguchi image) (Joseph Brimacombe image) (Stu Parker image) (CRTS image) (Stan Howerton image)
Mag 15.9:1/28 (15.4:12/27), Type Ia (References: CBAT TOCP)

2011jf (= PSN J02385461+2750487), CBET 2951 discovered 2011/12/22.833 by Cortini Giancarlo
Found in UGC 2134 at R.A. = 02h38m54s.61, Decl. = +27°50'48".7
Located 3" east and 1" south of the center of UGC 2134 (Discovery image) (Mantero Andrea image) (Denis Buczynski image) (William Wiethoff image) (Joseph Brimacombe image) (Giancarlo Cortini image)
Mag 18.2:1/14 (17.7:12/27), Type Ib/c (References: CBAT TOCP)

2011jb (= CSS111128:113705+152814), CBET 2947 discovered 2011/11/28.45 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 11h37m04s.80, Decl. = +15°28'14".2
Located 0" east and 0" north of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.6:12/28, Type IIn (References: ATEL 3795)

PSN J03005095-3845527 (= SSS111220:030051-384553), CBAT TOCP discovered 2011/12/20.600 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 03h00m50s.95, Decl. = -38°45'52".7
Located 10" west and 17" north of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image)
Mag 18.3:12/20, Type unknown

2011ja, (= PSN J13051112-4931270), CBET 2946 discovered 2011/12/18.086 by Berto Monard
Found in NGC 4945 at R.A. = 13h05m11s.11, Decl. = -49°31'27".0
Located 152" west and 195" south of the center of NGC 4945 (Discovery image)
Mag 11.7:1/9 (rising), Type IIP (References: CBAT TOCP, ATEL 3820, 3899, SN 2005af)
2011ja images sub-page

LSQ11bk, ATEL 3812 discovered 2011/12/06.058 by La Silla-QUEST
Found in an anonymous galaxy at R.A. = 04h20m44s.27, Decl. = -08°35'55".4
Located 0" east and 0" north of the center of the host galaxy (Stan Howerton image) (Joseph Brimacombe image) (William Wiethoff image)
Mag 17.3:12/18 (17.2:12/6), Type Ia

2011jg (= PSN J16171887+5919298), CBET 2952 discovered 2011/12/17.735 by Cortini Giancarlo
Found in UGC 10331 at R.A. = 16h17m18s.87, Decl. = +59°19'29".7
Located 15" west and 17" north of the center of UGC 10331 (Discovery image) (Denis Buczynski image) (Joseph Brimacombe image) (Federica Luppi image) (Dennis Buczynski image) (Giancarlo Cortini image)
Mag 17.7:12/18 (17.5:12/17), Type IIb (References: CBAT TOCP)

2011jj (= PSN J01263180+3137026), CBET 2955 discovered 2011/12/01.090 by Catalina Real-Time Transient Survey and Stan Howerton
Found in MCG +5-4-59 at R.A. = 01h26m31s.79, Decl. = +31°37'02".5 (= PGC 5364)
Located 23".0 west and 3".8 north of the center of MCG +5-4-59 (Discovery image)
Mag 19.7:1/14 (19.2:12/22), Type IIP (References: CBAT TOCP SN 2011ix)
2011ix and 2011jj images sub-page

2011iy, (= PSN J13085839-1531041), CBET 2943 discovered 2011/12/09.856 by Koichi Itagaki
Found in NGC 4984 at R.A. = 13h08m58s.38, Decl. = -15°31'04".0
Located 16".6 east and 6".1 south of the center of NGC 4984 (Discovery image)
Mag 14.6:1/28 (12.2:12/10), Type Ia (References: CBAT TOCP)
2011iy images sub-page

25 supernovae ATEL 3798 discovered by Palomar Transient Factory

PTF11mkx (= 2011he)
PTF11mpv discovered 2011/09/17.17 at R.A. = 15h41m42s.95, Decl. = +37°27'30".4 Mag 20.1:09/17, Type II (Joseph Briacombe image)
PTF11mxk discovered 2011/09/25.45 at R.A. = 01h56m10s.48, Decl. = -05°55'59".7 Mag 19.8:09/25, Type Ia (Joseph Brimacombe image)
PTF11pdk discovered 2011/10/22.40 at R.A. = 08h02m13s.57, Decl. = +67°30'43".8 Mag 19.6:10/22, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11pfm discovered 2011/10/24.27 at R.A. = 21h44m13s.79, Decl. = +00°56'34".1 Mag 20.0:10/24, Type Ia (Discovery image)
PTF11phk discovered 2011/10/25.27 at R.A. = 00h23m56s.70, Decl. = +29°31'18".1 Mag 19.7:10/25, Type Ia (Joseph Brimacombe image)
PTF11pra (= 2011hk)
PTF11pzq discovered 2011/11/01.33 at R.A. = 01h40m38s.01, Decl. = -06°30'28".8 Mag 20.0:11/01, Type Ia (Joseph Brimacombe image)
PTF11qgw (= 2011ev)
PTF11qko discovered 2011/11/18.42 at R.A. = 08h07m24s.82, Decl. = +46°35'34".9 Mag 18.1:11/18, Type Ia (Joseph Brimacombe image)
PTF11qmn discovered 2011/11/22.16 at R.A. = 02h30m24s.85, Decl. = -04°34'30".3 Mag 17.7:12/10, Type Ia (Joseph Brimacombe image)
PTF11qmo discovered 2011/11/22.55 at R.A. = 10h06m49s.76, Decl. = -07°41'12".3 Mag 17.9:12/9 (17.6:11/22), Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11qnr (= 2011im)
PTF11qpc discovered 2011/11/26.52 at R.A. = 12h20m05s.47, Decl. = +09°24'12".1 Mag 20.0:12/21 (18.8:11/26), Type Ia (Joseph Brimacombe image)
PTF11qpg discovered 2011/11/26.14 at R.A. = 00h47m23s.90, Decl. = -26°49'03".0 Mag 18.7:11/26, Type Ia (Joseph Brimacombe image)
PTF11qri discovered 2011/11/28.55 at R.A. = 12h47m06s.28, Decl. = -06°19'49".7 Mag 18.1:12/10, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11qrv discovered 2011/11/28.18 at R.A. = 23h46m46s.16, Decl. = -03°20'53".5 Mag 19.8:11/28, Type Ia (Discovery image) (Joseph Brimacombe image)
PTF11qtq discovered 2011/10/30.19 at R.A. = 01h55m07s.88, Decl. = +06°35'08".7 Mag 20.8:10/30, Type Ia (Joseph Brimacombe image)
PTF11quu discovered 2011/11/30.52 at R.A. = 12h29m55s.63, Decl. = +10°48'10".5 Mag 18.8:11/30, Type Ia (Joseph Brimacombe image)
PTF11qux discovered 2011/11/16.50 at R.A. = 12h34m00s.31, Decl. = +11°19'20".4 Mag 18.8:11/16, Type II (Joseph Brimacombe image)
PTF11qvh discovered 2011/11/30.46 at R.A. = 11h44m53s.42, Decl. = +19°33'44".9 Mag 18.2:12/21, Type Ia (Joseph Brimacombe image)
PTF11qzq discovered 2011/12/04.43 at R.A. = 07h19m27s.24, Decl. = +54°13'48".0 Mag 19.2:12/04, Type Ia (Joseph Brimacombe image)

2011iv, (= PSN J03385135-3535320), CBET 2940 discovered 2011/12/02.570 by Stu Parker
Found in NGC 1404 at R.A. = 03h38m51s.34, Decl. = -35°35'32".0
Located 7" west and 8" north of the center of NGC 1404 (Discovery image)
Mag 13.7:1/14 (12.2:12/5), Type Ia (References: CBAT TOCP; ATEL 3797, SN 2007on)
2011iv images sub-page

2011jc (= PSN J03383439+2232595) (= MLS111130:033834+223259), CBET 2948 discovered 2011/11/30.260 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 03h38m34s.38, Decl. = +22°32'59".5
Located 1".1 east and 16".7 north of the center of the anonymous galaxy (Discovery image) (Leonid Elenin image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 18.9:12/22 (18.4:12/4), Type IIn (References: CBAT TOCP)

2011iz (= PSN J03213648+2233461) (= MLS111130:032136+223346), CBET 2945 discovered 2011/11/30.260 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 03h21m36s.47, Decl. = +22°33'46".0
Located 0".1 west and 15".3 south of the center of the anonymous galaxy (Discovery image) (Joseph Brimacombe image) (Leonid Elenin image) (Stan Howerton image)
Mag 18.7:12/18 (17.2:12/4), Type Ia (References: CBAT TOCP)

2011it, (= PSN J22024445+3141491), CBET 2938 discovered 2011/11/27.780 by F. Ciabattari and E. Mazzoni (Italian Supernovae Search Project)
Found in PGC 67911 at R.A. = 22h02m44s.45, Decl. = +31°41'49".0
Located 5" east and 4" north of the center of PGC 67911 (Robert Koff image) (Joseph Brimacombe image) (Confirmation image) (Mantero Andrea image) (Stan Howerton image)
Mag 16.5:12/25, Type Ic (References: CBAT TOCP ATEL 3804)

PSN J03130662+2837566, CBAT TOCP discovered 2011/11/28.170 by Catalina Real-Time Transient Survey and Stan Howerton
Found in UGC 2593 at R.A. = 03h13m06s.61, Decl. = +28°37'56".5
Located 1" west and 9" south of the center of UGC 2593 (Discovery image) (Stan Howerton image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 19.4:11/29, Type unknown

2011jl (= PSN J10430295-3621524), CBET 2957 discovered 2011/11/27.280 by CHASE
Found in NGC 3354 at R.A. = 10h43m02s.95, Decl. = -36°21'52".4
Located 0".5 east and 8".0 south of the center of NGC 3354 (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 15.5:1/28, Type Ic (References: CBAT TOCP)

2011iu (= PSN J23510228+4643217), CBET 2939 discovered 2011/11/25.167 by L. Cox, Jack Newton, and Tim Puckett
Found in UGC 12809 at R.A. = 23h51m02s.27, Decl. = +46°43'21".7
Located 9".4 west and 4".1 south of the center of UGC 12809 (Robert Koff image) (Joseph Brimacombe image) (Diego Rodríguez image) (Stan Howerton image)
Mag 17.3:12/25 (17.1:11/29), Type Ia (References: CBAT TOCP)

2011je (= PSN J04055376+1328129), CBET 2950 discovered 2011/11/27.290 by Catalina Real-Time Transient Survey and Stan Howerton
Found in an anonymous galaxy at R.A. = 04h05m53s.75, Decl. = +13°28'12".8
Located 11".4 west and 2".4 south of the center of the anonymous galaxy (Robert Koff image) (Stan Howerton image) (Joseph Brimacombe image) (Thomas Langhans image) (Faulkes Telescope North image) (Thomas Langhans image) (Thomas Langhans image)
Mag 19.0:1/13 (18.4:11/27), Type II-pec (References: CBAT TOCP)

2011io (= MASTER PGC1354027) (= CSS120103:230248+084809) (= PSN J23024757+0848087), CBET 2931 discovered 2011/11/27.480 by MASTER robotic Net
Found in PGC 1354027 at R.A. = 23h02m47s.59, Decl. = +08°48'09".8 (near NGC 4679)
Located 12".4 east and 8".6 south of the center of PGC 1354027 (Discovery image) (Stan Howerton image) (Joseph Brimacombe image) (JM Llapasset image) (Stan Howerton image) (CRTS image) (Robert Koff image) (Joseph Brimacombe image)
Mag 18.3:1/3 (16.2:11/27), Type Ia (References: ATEL 3783)

PSN J21593422-2639546 (= SSS111127:215934-263955), CBAT TOCP discovered 2011/11/27.480 by Catalina Real-Time Transient Survey
Found in ESO 532-7 at R.A. = 21h59m34s.22, Decl. = -26°39'54".5
Located 35" east and 15" south of the center of ESO 532-7 (Discovery image) (Joseph Brimacombe image) (Leonid Elenin image)
Mag 16.9:12/7, Type unknown

2011im (= PTF11qnr) (= PSN J22442522-0010020), CBET 2928 discovered 2011/11/24.12 by Koichi Itagaki
Found in NGC 7364 at R.A. = 22h44m25s.21, Decl. = -00°10'02".0
Located 13".0 east and 18".8 south of the center of NGC 7364 (Discovery image) (Robert Koff image) (T. Yusa image) (Giancarlo Cortini image) (Joseph Brimacombe image) (Stan Howerton image) (William Wiethoff image) (Joseph Brimacombe image) (JM Llapasset image) (JM Llapasset image) (JM Llapasset image) (Stan Howerton image) (Joel Nicolas image)
Mag 16.0:12/16 (Mag 15.3:12/8), Type Ia (References: ATEL 3798, CBAT TOCP; SN 2009fk, 2006lc)

2011jz (= PSN J04464170-6228022), CBET 2995 discovered 2011/11/25.015 by Berto Monard
Found in ESO 85-1 at R.A. = 04h46m41s.70, Decl. = -62°28'02".2
Located 12" west and 12" south of the center of ESO 85-1 (Discovery image) (Confirmation image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Berto Monard image)
Mag 17.3:11/27, Type II (References: CBAT TOCP)

2011il (= MASTER OT073508.62+191126.1), ATEL 3779 discovered 2011/11/20.030 by MASTER robotic Net
Found in LEDA 1583740 at R.A. = 07h35m08s.62, Decl. = +19°11'26".1
Located 0" east and 0" north of the center of LEDA 1583740 (Discovery image) (Joseph Brimacombe image) (Thomas Langhans image) (Thomas Langhans image)
Mag 19.0:1/17 (17.0:11/20), Type Ia (References: CBET 2927)

2011ir (= PSN J11480032+0429471), CBET 2934 discovered 2011/11/21.813 by Shigeru Furuyama
Found in UGC 6771 at R.A. = 11h48m00s.31, Decl. = +04°29'47".0
Located 1".2 east and 29".9 north of the center of UGC 6771 (Discovery image) (T. Yusa image confirmation) (Joseph Brimacombe image) (Federica Luppi and Luca Buzzi image) (Emile Capella image) (JM Llapasset image) (Joel Nicolas image) (Joel Nicolas image) (Thomas Langhans image) (JM Llapasset image) (Manuel Díaz image) (JM Llapasset image) (Emile Capella image) (Thomas Langhans image)
Mag 17.5:1/28 (16.1:11/21), Type II (References: CBAT TOCP)

2011hw (= PSN J22261454+3412591), CBET 2906 discovered 2011/11/18.735 by B. Dintinjana and H. Mikuz
Found in an anonymous galaxy at R.A. = 22h26m14s.53, Decl. = +34°12'59".0
Located 8" east and 1" north of the center of the anonymous galaxy (Discovery image) (Robert Koff image) (Giancarlo Cortini image) (Joseph Brimacombe image) (JM Llapasset image) (Stan Howerton image) (William Wiethoff image) (JM Llapasset image) (JM Llapasset image) (Emile Capella image) (JM Llapasset image) (Stan Howerton image)
Mag 16.0:11/30 (15.5:11/20), Type IIn/Ibn (References: CBAT TOCP, vsnet-recent-sn 2683)

2011ia (= PSN J09450355+6415366), CBET 2910 discovered 2011/11/18.210 by F. Ciabattari, S. Donati, E. Mazzoni, G. Petroni and M. Rossi (Italian Supernovae Search Project)
Found in MCG +11-12-23 at R.A. = 09h45m03s.54, Decl. = +64°15'36".5
Located 2" east and 16" north of the center of MCG +11-12-23 (Confirmation image)
Mag 16.5:1/28 (14.8:11/23), Type Ia (References: CBAT TOCP, vsnet-recent-sn 2684)
2011ia images sub-page

2011hv (= PSN J23181655+0015431), CBET 2905 discovered 2011/11/17.730 by F. Ciabattari, S. Donati, E. Mazzoni, G. Petroni and M. Rossi (Italian Supernovae Search Project)
Found in NGC 7589 at R.A. = 23h18m16s.54, Decl. = +00°15'43".0
Located 14" east and 4" north of the center of NGC 7589 (Confirmation image) (Joseph Brimacombe image) (Giancarlo Cortini image) (JM Llapasset image) (Stan Howerton image) (William Wiethoff image)
Mag 17.5:12/16 (16.3:11/23), Type Ia (References: CBAT TOCP, vsnet-recent-sn 2682)

2011hy (= PSN J04450526+7247026), CBET 2908 discovered 2011/11/16.748 by Cortini Giancarlo
Found in UGC 3131 at R.A. = 04h45m05s.26, Decl. = +72°47'02".5
Located 4" west and 1" south of the center of UGC 3131 (Discovery image) (Joseph Brimacombe image) (Federica Luppi and Luca Buzzi image) (Nick James image) (Mantero Andrea image) (Stan Howerton image) (Emile Capella image) (Thomas Langhans image)
Mag 17.6:1/28 (16.9:12/27), Type II (References: CBAT TOCP)

2011hx (= PSN J02320796+4105005), CBET 2907 discovered 2011/11/01.830 by T. Kryachko, S. Korotkiy and B.Satovskiy
Found in an anonymous galaxy at R.A. = 02h32m07s.96, Decl. = +41°05'00".5
Located 6".9 east and 1".5 south of the center of the host galaxy (Discovery image) (Thomas Langhans image) (Joseph Brimacombe image) (V. Gerke image) (Federica Luppi and Luca Buzzi image) (Giancarlo Cortini image) (Stan Howerton imag) (JM Llapasset image) (Stan Howerton image) (Thomas Langhans image)
Mag 17.0:1/13 (16.0:11/24), Type II (References: CBAT TOCP)

2011hs (= PSN J22571177-4323048), CBET 2902 discovered 2011/11/12.476 by Stu Parker
Found in IC 5267 at R.A. = 22h57m11s.77, Decl. = -43°23'04".8
Located 20" west and 41" north of the center of IC 5267 (Stu Parker image) (Joseph Brimacombe image) (Ivan Curtis image) (Stu Parker image) (Joseph Brimacombe image)
Mag 14.5:11/27, Type IIb (Hypernova) (References: ATEL 3768, ATEL 2789, CBAT TOCP)

2011hr (= PSN J08544603+3932161), CBET 2901 discovered 2011/11/08.540 by Lick Observatory Supernova Search
Found in NGC 2691 at R.A. = 08h54m46s.02, Decl. = +39°32'16".1
Located 3".4 west and 3".7 south of the center of NGC 2691 (Discovery image) (Thomas Langhans image) (Joseph Brimacombe image) (Thomas Langhans image) (Giancarlo Cortini image) (Thomas Langhans image) (JM Llapasset image) (Roberto Barcellona & Paolo Demaria image) (Roberto Barcellona & Paolo Demaria image) (Stan Howerton image) (Nick James image) (Thomas Langhans image)
Mag 15.7:12/18 (13.8:11/19), Type Ia (References: CBAT TOCP)

2011hb (= PSN J23275551+0846457) (= SNhunt86), CBET 2880 discovered 2011/10/24.240 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 7674 at R.A. = 23h27m55s.50, Decl. = +08°46'45".7
Located 18" west and 1" north of the center of NGC 7674 (Discovery image) (Stan Howerton image) (Leonid Elenin image) (William Wiethoff image) (Diego Rodríguez image) (Stan Howerton image) JM Llapasset image) (Stan Howerton image) (Stan Howerton image) (Stan Howerton image)
Mag 17.6:12/25 (16.5:11/18), Type Ia (References: (CBET 2877 corrected) (CBET 2880 corrected) CBAT TOCP SN 2011ee)

2011hd (= PSN J09584830+3447033) (= CSS111024:095848+344703), CBET 2884 discovered 2011/10/24.510 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 09h58m48s.30, Decl. = +34°47'03".3
Located 7".4 east and 7".7 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Robert Koff image) (Federica Luppi image) (Thomas Langhans image) (JM Llapasset image) (JM Llapasset image) (JM Llapasset image) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image)
Mag 18.1:1/17 (15.9:10/25), Type Ia (References: ATEL 3706, (CBET 2883 corrected) CBAT TOCP, vsnet-redent-sn 2680)

2011hn (= PSN J09031745+3035364) (= SNhunt80), CBET 2897 discovered 2011/10/03.480 by Catalina Real-Time Transient Survey and Stan Howerton
Found in IC 2428 at R.A. = 09h03m17s.45, Decl. = +30°35'36".4 (= UGC 4747)
Located 36" east and 8" north of the center of IC 2428 (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Z. Jin and X. Gao image) (Joseph Brimacombe image) (Giancarlo Cortini image) (JM Llapasset image) (Joseph Brimacombe) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image) (Giancarlo Cortini image) (Thomas Langhans image)
Mag 19.4:1/17 (16.5:10/15), Type IIP (References: vsnet-recent-sn 2591, CBAT TOCP)

2011gn (= PSN J07062829+7752318), CBET 2848 discovered 2011/09/30.113 by Tom Boles
Found in MCG +13-05-36 at R.A. = 07h06m28s.29, Decl. = +77°52'31".7 (= PGC 20157)
Located 2".4 west and 20".3 north of the center of MCG +13-05-36 (Discovery image) (Giancarlo Cortini image) (Joseph Brimacombe image) (JM Llapasset image) (Thomas Langhans image) (Joseph Brimacombe image) (Thomas Langhans image) (Joel Nicolas image) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image)
Mag 19.2:1/28 (16.9:10/7), Type Ia (References: CBAT TOCP)

2011ht (= PSN J10081059+5150570), CBET 2851 discovered 2011/09/29.182 by Tom Boles
Found in UGC 5460 at R.A. = 10h08m10s.59, Decl. = +51°50'57".0
Located 12".4 east and 17".2 north of the center of UGC 5460 (Discovery image)
Mag 15.5:1/27 (13.7:11/26), Type IIn (References: vsnet-recent-sn 2592, CBAT TOCP, PSN J10081058+5150576, ATEL 3690, 3749, 3895, CBET 2903)
2011ht images sub-page

2011fu (= PSN J02082141+4129123), CBET 2827 discovered 2011/09/21.040 by Fabrizio Ciabattari and E. Mazzoni (Italian Supernovae Search Project)
Found in UGC 1626 at R.A. = 02h08m21s.40, Decl. = +41°29'12".3
Located 2" west and 26" north of the center of UGC 1626 (Discovery image)
Mag 18.4:1/19 (15.8:9/23), Type II (References: CBAT TOCP)
2011fu images sub-page

2011fh, CBET 2799 discovered 2011/08/24.746 by Berto Monard
Found in NGC 4806 at R.A. = 12h56m14s.01, Decl. = -29°29'54".8
Located 14" east and 21" north of the center of NGC 4806 (Discovery image) (Confirmation image) (CRTS images) (Joseph Brimacombe image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 17.6:1/28 (14.5:8/25), Type IIn

2011fe (= PTF11kly), (= PSN J14030581+5416254), ATEL 3581 discovered 2011/08/24.000 by Palomar Transient Factory
Found in M101 at R.A. = 14h03m05s.80, Decl. = +54°16'25".3
Located 58".6 west and 270".7 south of the center of M101 (Discovery image)
Mag 14.6:1/28 (9.9:9/10), Type Ia (References: CBET 2792, 2804, 2863, TOCP page, AAVSO special notice 250, ATEL 3582, 3583, 3584, 3585, 3587, 3588, 3589, 3590, 3592, 3593, 3594, 3597, 3598, 3599, 3602, 3605, 3607, 3612, 3615, 3620, 3623, 3642, 3658, 3696, 3822, SN 1970G, 1951H, 1909A)
2011fe images sub-page

2011fd (= PSN J06463985+6021028), CBET 2791 discovered 2011/08/20.121 by Alessandro Dimai (Italian Supernovae Search Project)
Found in NGC 2273B at R.A. = 06h46m39s.84, Decl. = +60°21'02".7
Located 60" east and 36" north of the center of NGC 2273B (Discovery image)
Mag 18.1:1/28 (14.8:8/21), Type IIP (References: CBAT TOCP, PSN J06463976+6021020 PSN J06463227+6019552)
2011fd images sub-page

PSN J12304185+4137498, CBET 2789 discovered 2011/08/16.830 by Giancarlo Cortini and Stefano Antonellini
Found in NGC 4490 at R.A. = 12h30m41s.84, Decl. = +41°37'49".7
Located 57" east and 37" south of the center of NGC 4490 (Discovery image) (Jozsef Vinko image) (Dan Crowson image) (Joseph Brimacombe image) (Giancarlo Cortini image) (HST image progenitor) (Stan Howerton image) (Giancarlo Cortini image) (Martin Mobberley image) (Giancarlo Cortini image) (Thomas Langhans) (LOSS image) (Thomas Langhans image) (Stan Howerton image)
Mag 16.7:1/28 (16.0:1/12), Type LBV (References: CBAT TOCP, PSN J12304185+4137492, PSN J12304184+4137497, ATEL 3571, 3574, 3603; SN 2008ax, 1982F)

2011ek (= PSN J02254889+1832000), CBET 2783 discovered 2011/08/04.770 by Koichi Itagaki
Found in NGC 918 at R.A. = 02h25m48s.88, Decl. = +18°32'00".0
Located 27" west and 133" north of the center of NGC 918 (Discovery image)
Mag 19.6:1/17 (14.3:8/17), Type Ia (References: CBET 2785, CBET 2786, ATEL 3541 CBAT TOCP; SN 2009js)
2011ek images sub-page

2011eh (= PSN J11183170+5758372), CBET 2776 discovered 2011/07/20.480 by Masaki Tsuboi
Found in NGC 3613 at R.A. = 11h18m31s.70, Decl. = +57°58'37".2
Located 35".5 west and 83".0 south of the center of NGC 3613 (Discovery image)
Mag 19.9:12/3 (14.3:7/23), Type Ia (subluminous) (References: ATEL 3527, CBAT TOCP)
2011eh images sub-page

PTF11iqb (= PSN J00340484-0942179), ATEL 3510 discovered 2011/07/23.41 by by Palomar Transient Factory
Found in NGC 151 at R.A. = 00h34m04s.84, Decl. = -09°42'17".9
Located 30".3 east and 1".1 south of the center of NGC 151 (Joseph Brimacombe image) (Joseph Brimacombe image) (JM Llapasset image) (William Wiethoff image) (Rodrigo Losada image) (Joseph Brimacombe image) (Rodrigo Losada image) (Stu Parker image color) (Stan Howerton image) (Joseph Brimacombe image) (JM Llapasset image) (Joel Nicolas image) (JM Llapasset image)
Mag 17.1:11/30 (15.2), Type IIn (References: ATEL 3511, ATEL 3512, TOCP page)

2011eg (= PSN J18425421+5302415), CBET 2774 discovered 2011/07/23.288 by Jack Newton, A. Sehgal, and Tim Puckett
Found in UGC 11343 at R.A. = 18h42m54s.20, Decl. = +53°02'41".5
Located 30".21 west and 6".2 south of the center of UGC 11343 (Discovery image) (Joseph Brimacombe image color) (Felipe Peña image) (Emili Capella image) (Francisco Centenera/NTO image) (Stan Howerton image) (William Wiethoff image) (Joseph Brimacombe image) (Rafael Benavides image) (Anthony Ayiomamitis image) (JM Llapasset image) (Dan Crowson image) (Enrico Prosperi image) (Enrico Prosperi image) (Rafael Benavides image) (Thomas Langhans image) (Stan Howerton image)
Mag 16.0:12/18 (15.6:11/5), Type IIP (References: CBAT TOCP)

2011dm (= PSN J21564159+7317489), CBET 2745 discovered 2011/06/15.420 by Lick Observatory Supernova Search
Found in UGC 11861 at R.A. = 21h56m41s.59, Decl. = +73°17'48".9
Located 73" east and 131" north of the center of UGC 11861
Mag 21.7:12/18 (14.7:6/25), Type Ia (References: CBAT TOCP)
2011dm images sub-page

2011dh (= PSN J13303600+4706330) (= PTF11eon), CBET 2736 discovered 2011/05/31.893 by Tom Reiland; Thomas Griga; Amedee Riou; and Stephane Lamotte Bailey
Found in M51 at R.A. = 13h30m05s.124, Decl. = +47°10'11".301
Located 138" east and 92" north of the center of M51 (Bailey discovery image) (Dupouy discovery image) (Griga discovery image)
Mag 17.6:1/28 (12.1:6/19), Type IIb (References: ATEL 3398, 3399, 3400, 3401, 3402, 3405, 3406, 3411, 3413, 3414, 3428, 3431, 3432, 3433, 3435, 3456, 3641, CBAT TOCP, SN 2005cs, 1994I)
2011dh images sub-page

2011by (= PSN J11554556+5519338), CBET 2708 discovered 2011/04/26.823 by Zhangwei Jin and Xing Gao
Found in NGC 3972 at R.A. = 11h55m45s.56, Decl. = +55°19'33".8
Located 5".3 east and 19".1 north of the center of NGC 3972 (Discovery image)
Mag 18.4:11/26 (12.5:5/8), Type Ia (References: CBET 2961, ATEL 3410, 3456 CBAT TOCP, PSN J11554551+5519320)
2011by images sub-page

2010jl, CBET 2532 discovered 2010/11/02.06 by Jack Newton and Tim Puckett
Found in UGC 5189A at R.A. = 09h42m53s.33, Decl. = +09°29'41".8 (Stan Howerton finder chart)
Located 2".4 east and 7".7 north of the center of UGC 5189A (Discovery image)
Mag 15.8:1/17 (12.9:11/14), Type IIn (References: CBET 2536, ATEL 3010, ATEL 3012, ATEL 3395, CBET 2539, ATEL 3017)
2010jl images sub-page

For Supernovae which have faded below 18th magnitude,
you will have to look in the archives

Other supernovae from 2012	Other Extragalactic Novae from 2012	Unconfirmed objects from 2012
Other supernovae from 2011	Other Extragalactic Novae from 2011	Unconfirmed objects from 2011
Other supernovae from 2010	Other Extragalactic Novae from 2010

Do you have a Supernova image you are willing to share with others? Please tell me about it! Don't be a data miser, share your data with others! I prefer to link to images already at a location on the web, but if you send me an image (jpeg or gif preferred) I will post and index it.

I plan to report only "bright" Supernova (above mag 17.5) on this page. Note that you are going to need a big telescope to find most of these things, for instance, a "Mag 14" SN probably won't be visible to the eye in anything less than a 10" telescope. A CCD, however, can often detect a Mag 14 object with a much smaller objective. Those SN which are easily findable by amateurs (above mag 14.0) will be in red.

The format is as follows:

Name of SN, IAUC circular number (link to circular), Date which the supernova first appeared (Year/Month/Date format), Name of discoverers separated by a ";" (link to discovery site(s) if possible)

If possible I will create an icon for every bright supernova. This icon will be black on a white background and mirror imaged left to right so that North is up and East is left. The exception being a color image, which will have he same orientation. All icons will be less than 100x100 pixels in size so that they load quickly.

Links

Please send feedback to David Bishop dbishop@vhdl.org. This web page is brought to you by the International Supernova Network and the Astronomy Section of the Rochester Academy of Sciences. This page is supported by Tenagra Observatory.