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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
eta Ori |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
05 21 57.68 -02 26 29.7 |
| Proper motion |
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| Galactic coord. |
204.866 -20.392 |
Other names
(Internal only)
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28 Ori |
1RXS J052429.7-022403 |
AAVSO 0519-02 |
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ADS 4002 A |
BD-02 1235 |
HD 35411 |
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HIP 25281 |
HR 1788 |
SAO 132071 |
(Not logged in) Add name
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| Variability type |
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EA+BCEP: |
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| Spectral type |
B0.5Vea+B3V |
| Mag. range |
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3.31 - 3.6 V |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
7.989253 d |
| Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
GCVS Team |
VB Aab (AC 0.037", 111deg, 1979.0, P = 9.219 yr [E.R.Zizka, W.R.Beardsley, AJ 86, N12, 1944, 1981.]; 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 [E.R.Zizka, W.R.Beardsley, AJ 86, N12, 1944, 1981.] with P = 0.30197d [R.H.Koch, B.J.Hrivnak, D.H.Bradstreet, BAAS 12, 452, 1980.] or 0.30145d [C.Waelkens, F.Rufener, AsAp 121, 45, 1983.]. According to [R.R.Shobbrook, MN 184, 43, 1978.] these variations were not observed between 1970 and 1976. |
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References
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External Links
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Location
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 3.97 | H = 4.00 | K = 3.90 | J - K = 0.07 |
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AllWISE
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W1 = 3.98 | W2 = 3.73 | W3 = 4.05 | W4 = 4.05 | W1 - W2 = 0.25 | W3 - W4 = 0.01 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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Stellar Association Membership
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ASCC 19 |
Open Cluster |
2012A&A...548A..97Z |
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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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