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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620061 |AG Peg *|215101.98 +123732.1 |NC | 6.0 | 9.4 | |V | |1870 | | |WN6+M3III |09580 02510| |+0.000 -0.003|2000.0 | |Hip | |AG Peg |
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_______________Cross-identifications:_______________
AG Peg = BD +11 4673 |
AG Peg = GSC 1130.00653 |
AG Peg = HD 207757 |
AG Peg = Hip 107848 |
AG Peg = IRAS 21486+1223 |
AG Peg = MWC 0379 |
AG Peg = SAO 107436 |
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Reference to a chart or photograph:
02510. P.W.Merrill, Sky and Tel 18, N9, 490, 1959.
Reference to a study of the star:
09580. J.B. Hutchings, A.P.Cowley, R.O. Redman, ApJ 201, 404, 1975 {1975ApJ...201..404H}
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Remark:
SB2 (Porb = 820d [09580]).
Maximum of brightness was in 1870, then the very
slow light decrease was observed that was superimposed
since 1935 by periodical light oscillations with
A = 0.4m V
and P = Porb: Min = 2428250 + 827.d*E ( JD2428000-43000)
[09587]. After JD2442300 the period probably has changed:
Min = 2442370 + 760d*E [09587]. In 1962 - 1979 the range of
brightness was 7.95m - 8.55m V; M - m = 0.50P.
Light minima correspond to the epochs of inferior
conjunction of M 3 III component. Spectrum var: Beq
(1893 - 1919); since 1922 the spectrum is symbiotic one,
the M star spectrum being more noticeable.
Surrounded by a radio nebula with 1" half-power diameter.
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