NNo       GCVS          J2000.0        Type       Max       Min I        Min II      Epoch(JD24..) Year        Period        M-m/D    Spectrum       References  Other design. 
------------------------------------------------------------------------------------------------------------------------------------------------------------------
639002 |bet   Per *|030810.1+405720 |EA/SD     |  2.12   |   3.39     |            |V |45641.5135  |     |     2.8673043      |14  *|B8V              |00001 08953|
------------------------------------------------------------------------------------------------------------------------------------------------------------------


______________The positional information: ___________________________
  NNo     GCVS            J2000.0         p.m.(as/yr) Epoch     Ident.
----------------------------------------------------------------------
639002 |bet   Per |030810.13 +405720.4 |+0.002 -0.001|2000.0  | |Hip
----------------------------------------------------------------------


_______________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  2851.02168               |     
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                |     
____________________________________________________

      Reference to a chart or photograph:
08953. AAVSO Variable Star Atlas, 1980.

      Reference to a study of the star:
00001. GCVS compilers.

__________________________________________________________________
      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.

----The End----