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Name
  tau CMa  
AAVSO UID
--  
Constellation
Canis Major Sequence
J2000.0
07 18 42.50 -24 57 16.0  (109.67708 -24.95444) Search nearby
B1950.0 07 16 38.04 -24 51 42.8
Galactic coord. 238.181 -5.543
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
30 CMa AAVSO 0714-24 ADS 5977 A
CD-24 5176 CPD-24 2216 HD 57061
HIP 35415 HR 2782 NSV 3528
SAO 173446 X 07166-249  
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Variability type
EB
Spectral type --
Mag. range
4.32 - 4.37 Hp
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Aa is a hierarchical O9 II+(B0.5V+B0.5V) triple system with P= 154.9 d. (Magnitudes 5.18, 7.45 and 7.45 V respectively). Additional known components at 0.12" (Ab, O9V, V= 5.38) and 0.95" (E) (2014ApJS..215...15S). Combined range given.
2 GCVS Team SB, Porb = 154.90d.
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References
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1 Sana, H.; et al., 2014, Southern Massive Stars at High Angular Resolution:
Observational Campaign and Companion Detection		 2014ApJS..215...15S
2 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200		 1997yCat.1239....0E
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Supporting Documents
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Stellar Association Membership
 NGC 2362 Open Cluster 2012A&A...548A..97Z
Revision History
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4 Otero, Sebastian Alberto 2016-04-02 22:53 UTC Range from HIPPARCOS and GCPD data. Spectral type from 2014ApJS..215...15S.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:52 UTC Added period, epoch and spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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