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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630193 |GK Per *|033112.01 +435415.4 |NA+XP | 0.2 | 14.0 | |V |15439. |1901 | | |pec(Nova) | 09515| | |1989.760| |GSC2.2 |N+XP |GK Per |
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_______________Cross-identifications:_______________
GK Per = AN 1901.0003 |
GK Per = BD +43 0740 |a
GK Per = GSC 2874.00922 |
GK Per = HD 021629 |
GK Per = X 03277+432 |
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Reference to a chart or photograph:09515. G. Williams, ApJ Suppl 53, 523, 1983 {1983ApJS...53..523W}
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Remark:
SB2 (sdBE + K2IVp).
The following types of activity are being observed after
the return to the normal brightness: rapid irregular
variations (Delta(m) ~0.1m in several minutes); irregular
fluctuations from night to night (Delta(m) up to 0.3m);
slow irregular variations (Delta(m) = 1.5m in several
dozen days); bursts with light increase in 10d - 30d and
decrease in 10d - 40d, Delta(m) up to 3.5m, the mean
interval between bursts being delta(t) = 820d [09686, 09788].
According to [10198], the radial velocities are
represented with the elements Max (Vr > 0) = 2444912.966 +
1.996803d*E (Kabs = 124 km/s, Kem = 34 km/s). According
to [10199], the 2d variation is modulated with a period
of 0.131623d, Max (delta(Vr)) ~2443787.995 (Kabs =
15 km/s, Kem = 20 km/s). During a burst the sinusoidal
modulation of X-ray flux was recorded,
Tmax = 24455555.67456 + 0.004066443d*E [09786].
ExpAnding envelope (0.454"/yr, 1948 - 1964;
0.432"/yr, 1964 - 1981, [09787]).
----The End----