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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609007 |eta Ori *|052428.62 -022349.7 |EA+BCEP: | 3.31 | 3.60 | 3.57 |V |15761.826 | | 7.989268 | |B0.5Vea+B3V |09504 08043| |-0.001 -0.003|2000.0 | |Hip | |eta Ori |
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_______________Cross-identifications:_______________
eta Ori = ADS 04002 |A
eta Ori = BAY Ori eta |
eta Ori = BD -02 1235 |
eta Ori = BS 01788 |
eta Ori = FLM Ori 028 |
eta Ori = GSC 4757.01588 |
eta Ori = HD 035411 |
eta Ori = Hip 025281 |
eta Ori = IRAS 05219-0226 |
eta Ori = SAO 132071 |
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Reference to a chart or photograph:08043. W.H. Warren, Jr., J.E.Hesser, ApJ Suppl 34, 115, 1977 {1977ApJS...34..115W}
Reference to a study of the star:
09504. R.H.Koch, IBVS N1418, 1978.
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Remark:
VB Aab (AC 0.037", 111deg, 1979.0, P = 9.219 yr [09535];
B 4.8m, 1.60", 76deg, 1976.0; C 9.4m, 115", 51deg). EA/DM.
Min II 3.57. The range of combined light variation of the
components AAb (SB 2, P = 7.989268d), AC, and B is given
in the Table. Outside eclipses there are sinusoidal light
variations of the system with A(V) = 0.05m due to
pulsations of the component Ab [09535] with P = 0.30197d
[09536] or 0.30145d [09537]. According to [08566] these
variations were not observed between 1970 and 1976.
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