Extragalactic Novae

Much of this data comes from CBET Circulars and occasionally more data will be provided on IAU's Astronomical Headlines page. CBET now has an M31 novae page, M33 novae page, and an M81 novae page.   An archive of the updates to this page is available.

CBET has a naming convention now for novae in M31 (now extended to Novae in M33 and M81).   This convention is YYYY-MMa, where YYYY is the year and MM is the 2-digit month of discovery, and 'a' is a lower-case letter (a, b, c, etc.) representing the order of discovery within that month.   Novae in the megellanic clouds are named with the year followed by a number.   Please note that I do not keep track of galactic novae.  

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Nova M31 2011-01c? (= PNV J00424483+4116299), CBAT TOCP discovered 2011/01/27.774 by Stanislav Korotkiy and Vladimir Gerke
Found in M31 at R.A. = 00h42m44s.83, Decl. = +41°16'29".9
Located 6" west and 21" north of the center of M31 (Discovery image)
Mag 20.4:1/27, Type unknown

Nova M31 2012-01b? (= PNV J00423804+4108417), CBAT TOCP discovered 2012/01/21.419 by Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h42m38s.04, Decl. = +41°08'41".7
Located 71" west and 0" north of the center of M31 (Discovery image) (Joseph Brimacombe image)
Mag 17.1:1/21, Type He/N (References: ATEL 3877)

Nova M81 2012-01e? (= PNV J09553560+6904154), CBAT TOCP discovered 2012/01/09.102 by Kamil Hornoch and Brigitta Sipocz
Found in M81 at R.A. = 09h55m35s.60, Decl. = +69°04'15".4
Located 13".0 east and 20".3 north of the center of M81 (Discovery image) (Joseph Brimacombe image)
Mag 20.1:1/9, Type unknown (References: ATEL 3871, 3888)

Nova M81 2012-01d? (= PNV J09553792+6902498), CBAT TOCP discovered 2012/01/09.102 by Kamil Hornoch and Brigitta Sipocz
Found in M81 at R.A. = 09h55m37s.92, Decl. = +69°02'49".8
Located 25".5 east and 65".3 south of the center of M81 (Discovery image) (Joseph Brimacombe image)
Mag 20.5:1/9, Type unknown (References: ATEL 3871, 3888)

Nova M81 2012-01c? (= PNV J09555778+6902041), CBAT TOCP discovered 2012/01/09.102 by Kamil Hornoch and Brigitta Sipocz
Found in M81 at R.A. = 09h55m57s.78, Decl. = +69°02'04".1
Located 132".0 east and 111".0 south of the center of M81 (Discovery image) (Joseph Brimacombe image)
Mag 20.5:1/9, Type unknown (References: ATEL 3871, 3888)

Nova M81 2012-01b? (= PNV J09555380+6903383), CBAT TOCP discovered 2012/01/09.102 by Kamil Hornoch and Brigitta Sipocz
Found in M81 at R.A. = 09h55m53s.80, Decl. = +69°03'38".3
Located 110".6 east and 16".8 south of the center of M81 (Discovery image) (Joseph Brimacombe image)
Mag 19.3:1/9, Type unknown (References: ATEL 3871, 3888)

Nova M81 2012-01a? (= PNV J09553278+6902139), CBAT TOCP discovered 2012/01/09.102 by Kamil Hornoch and Brigitta Sipocz
Found in M81 at R.A. = 09h55m32s.78, Decl. = +69°02'13".9
Located 2".1 west and 101".2 south of the center of M81 (Discovery image) (Joseph Brimacombe image)
Mag 19.3:1/9, Type unknown (References: ATEL 3871, 3888)

Nova M31 2012-01a? (= PTF12js), ATEL 3846 discovered 2012/01/05.140 by Palomar Transient Factory
Found in M31 at R.A. = 00h41m41s.00, Decl. = +41°19'43".7
Located 713".6 west and 215".2 north of the center of M31 (Koichi Nishiyama and Fujio Kabashima image) (Joseph Brimacombe image)
Mag 18.4:1/7, Type FeII (References: ATEL 3850, ATEL 3851)

Nova M81 2011-12a? (= PNV J09553281+6902028), ATEL 3867 discovered 2011/12/25.099 by Kamil Hornoch, J. Gorosabel and P. Kubanek
Found in M81 at R.A. = 09h55m32s.81, Decl. = +69°02'02".7
Located 1".9 west and 112".3 south of the center of M81 (Discovery image) (Joseph Brimacombe image) (Kamil Hornoch image)
Mag 19.7:12/25, Type unknown (References: CBAT TOCP, ATEL 3888)

Nova M31 2011-12b? (= PNV J00435583+4121265), CBAT TOCP discovered 2011/12/24.129 by Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h43m55s.83, Decl. = +41°21'26".5
Located 806" east and 318" north of the center of M31 (Discovery image) (Evgeni Ovcharov image) (Joseph Brimacombe image) (Joseph Brimacombe image color)
Mag 17.4:12/27, Type FeII Extragalactic nova (References: ATEL 3833)

Nova M31 2011-12a? (= PTF11rdv), ATEL 3800 discovered 2011/12/07.080 by Palomar Transient Factory
Found in M31 at R.A. = 00h42m06s.28, Decl. = +41°01'28".9
Located 429".7 west and 879".6 south of the center of M31 (Kamil Hornoch image) (Joseph Brimacombe image) (Stan Howerton image)
Mag 19.5:12/25 (17.3:12/9), Type FeII Extragalactic nova (References: ATEL 3825)

Nova M31 2011-11e? (= PNV J00423831+4116313), CBAT TOCP discovered 2011/11/19.704 by Kamil Hornoch and Jan Vrastil
Found in M31 at R.A. = 00h42m38s.31, Decl. = +41°16'31".2
Located 68" west and 23" north of the center of M31 (Discovery image) (Kamil Hornoch image) (Joseph Brimacombe image (wide field))
Mag 18.1:11/19, Type FeII Extragalactic nova (References: ATEL 3778)

Nova M31 2011-11d? (= TCP J00403295+4034387), CBAT TOCP discovered 2011/11/14.538 by Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h40m32s.95, Decl. = +40°34'38".7
Located 1481" west and 2490" south of the center of M31 (Joseph Brimacombe image) (Kamil Hornoch image)
Mag 18.3:11/14, Type WR star and Mira-like variable (References: ATEL 3806)

Nova M31 2011-11c? (= PNV J00415824+4124011), CBAT TOCP discovered 2011/11/13.728 by Stanislav Korotkiy and Vladimir Gerke; Kamil Hornoch
Found in M31 at R.A. = 00h41m58s.24, Decl. = +41°24'01".1
Located 529".0 west and 472".6 north of the center of M31 (Discovery image) (Kamil Hornoch image) (Thomas Langhans image) (Joseph Brimacombe image) (Kamil Hornoch image)
Mag 18.1:11/15, Type FeII Extragalactic nova (References: ATEL 3778)

Nova M31 2010-10i? (= PNV J00442656+4131136), CBAT TOCP discovered 2010/10/13.557 by unknown
Found in M31 at R.A. = 00h44m26s.55, Decl. = +41°31'13".6
Located 1350" east and 306" north of the center of M31
Mag 17.8:10/13, Type unknown

Nova M31 2011-11a? (= PNV J00421003+4105141), CBAT TOCP discovered 2011/11/12.504 by Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h42m10s.02, Decl. = +41°05'14".1
Located 387" west and 654" south of the center of M31 (Discovery image) (Kamil Hornoch image) (Thomas Langhans image)
Mag 17.7:11/12, Type FeII Extragalactic nova (References: ATEL 3769)

Nova M81 2011-11a? (= PNV J09553266+6906072) (= PTF11qij), CBAT TOCP discovered 2011/11/01.142 by Kamil Hornoch
Found in M81 at R.A. = 09h55m32s.65, Decl. = +69°06'07".1
Located 3" west and 132" north of the center of M81 (Discovery image) (Sergei Fabrika image) (Joseph Brimacombe image) (Kamil Hornoch image)
Mag 20.2:11/8, Type Extragalactic Nova (References: ATEL 3735, 3770, 3871, 3888)

Nova M31 2011-10e? (= PNV J00452885+4154094), CBAT TOCP discovered 2011/10/22.460 by Stanislav Korotkiy and Leonid Elenin
Found in M31 at R.A. = 00h45m28s.85, Decl. = +41°54'09".3
Located 1845.9" west and 2280".9 north of the center of M31 (Discovery image) (Thomas Langhans image) (Kamil Hornoch image) (Kamil Hornoch image)
Mag 18.6:10/22, Type unknown (References: ATEL 3725, ATEL 3727, ATEL 3728)

Nova M31 2011-10d? (= PNV J00425571+4117524), ATEL 3693 discovered 2011/10/20.366 by Koichi Itagaki; Evgeni Ovcharov et al.
Found in M31 at R.A. = 00h42m55s.70, Decl. = +41°17'52".4
Located 129".2 east and 104".1 north of the center of M31 (Itagaki discovery image) (Ovcharov discovery image) (L. Elenin image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Thomas Langhans image) (Thomas Langhans image)
Mag 17.8:10/26 (15.0:10/20), Type FeIIb extragalactic nova (SCORPIO spectrum) (References: ATEL 3699, 3702, 3725, 3727, CBAT TOCP)

Nova M31 2011-10c? (= PNV J00432630+4111148), CBAT TOCP discovered 2011/10/06.724 by Stanislav Korotkiy and Vladimir Gerke
Found in M31 at R.A. = 00h43m26s.29, Decl. = +41°11'14".8
Located 475" east and 294" south of the center of M31 (Discovery image) (Joseph Brimacombe image unconfirmed)
Mag 18.7:10/6, Type unknown

Nova M31 2011-10b? ATEL 3669 discovered 2011/10/04.770 by Evgeni Ovcharov et al.
Found in M31 at R.A. = 00h45m02s.36, Decl. = +41°14'39".8
Located 1556.3" east and 88.7" south of the center of M31 (Discovery image) (Joseph Brimacombe image)
Mag 19.6:10/6, Type unknown

Nova M31 2011-10a? (= PNV J00425701+4117095), CBAT TOCP discovered 2011/10/02.163 by Hanjie Tan and Xing Gao; Kamil Hornoch, Peter Kusnirak and Jan Vrastil
Found in M31 at R.A. = 00h42m57s.00, Decl. = +41°17'09".5
Located 144".1 east and 62".3 north of the center of M31 (Discovery image) (Kamil Hornoch image) (Kamil Hornoch image) (Joseph Brimacombe image) (Thomas Langhans image) (Thomas Langhans image) (Thomas Langhans image)
Mag 18.2:10/7, Type Fe II extragalactic nova (References: ATEL 3701, ATEL 3702, ATEL 3712)

Nova M32 2011-10a? (= PNV J00424277+4052017), CBAT TOCP discovered 2011/10/01.703 by Stanislav Korotkiy and Vladimir Gerke
Found in M32 at R.A. = 00h42m42s.77, Decl. = +40°52'01".7
Located 0" east and 0" north of the center of M32 (Dicovery image) (Joseph Brimacombe image) (Kamil Hornoch image) (S. Korotkiy, V. Gerke image) (S. Korotkiy, V. Gerke image)
Mag 16.8, Type unknown

archive.gif For Novae which have faded below 18th magnitude,
you will have to look in the archives
Current supernovae
Other supernovae from 2011 other extragalactic Novae from 2011
Supernovae from 2010 Extragalactic Novae from 2010

For more information in Extra galactic novae, look at the Extra Galactic Nova links on the links page.   Look at the updates page for a list of the most recent changes and additions to these pages.

Please send feedback to David Bishop dbishop@vhdl.org