NNo GCVS J2000.0 Type Max Min I Min II Epoch Year Period M-m/D Spectrum References Other desig. p.m.(as/yr) Epoch Ident. New type GCVS
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639002 |bet Per *|030810.13 +405720.4 |EA/SD | 2.12 | 3.39 | |V |45641.5135 | | 2.8673043 |14 *|B8V |00001 08953| |+0.002 -0.001|2000.0 | |Hip | |bet Per |
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_______________Cross-identifications:_______________
bet Per = ADS 02362 |A
bet Per = BAY Per bet |
bet Per = BD +40 0673 |
bet Per = BS 00936 |
bet Per = CRL 0443 |
bet Per = FLM Per 026 |
bet Per = GSC 02851.02168 |
bet Per = HD 019356 |
bet Per = Hip 014576 |
bet Per = IRAS 03048+4045 |
bet Per = IRC +40055 |
bet Per = SAO 038592 |
bet Per = X 03049+407 |
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Reference to a chart or photograph:
08953. AAVSO Variable Star Atlas, 1980.
Reference to a study of the star:
00001. GCVS compilers.
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Remark:
Multiple system (Eclipsing pair = Algol AB; Algol C 4.7m,
Am, a = 0".10, Porb = 1.862a); Algol AB = ADS 2362 A
(B 12.7m, 57".5, 156deg, 1920). P var. P = 2.8673442d
(1784 - 1835); P = 2.8673012d (1835 - 1854);
P = 2.8672775d
(1854 - 1901); P = 2.8672967d (1901 - 1913);
P = 2.8672506d
(1913 - 1915) [06156]; Min I = 2424477.806 + 2.86730236d*E
(JD2420500 - 25000); Min = 2425917.203 + 2.86732697d*E
(JD2425000 - 277000); Min I = 2433194.454 + 2.86731667d*E
(JD2427700 - 33600); Min I = 2433928.4944 + 2.86732442d*E
(JD2433600 - 37000); Min I = 2437598.6766 + 2.86733732d*E
(JD2437000 - 42200); since JD2442200 - see Table.
Porb (Algol C) = 1.862a may be traced in the deviations;
a period of 32a may also be real. Depth of Min I var.
Variable polarization, changes in hydrogen line profiles,
sometimes emissions in the spectrum. Radio source with
frequent burst of different amplitude, faint X-ray source.
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