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Latest Details
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Name
  V0712 Car  
AAVSO UID
000-BFR-704 (1 observation)  
Constellation
Carina Sequence
J2000.0
10 23 58.02 -57 45 48.9  (155.99175 -57.76358) Search nearby
B1950.0 10 22 07.60 -57 30 35.1
Proper motion
RA: -2.7 +/- 2.1 mas/yDec: 3.2 +/- 2.0 mas/ySource: UCAC4
Galactic coord. 284.267 -0.338
Other names

(Internal only)
2MASS J10235800-5745489 ASASSN-V J102358.07-574548.9 CXOU J102358.0-574548
Cl* Westerlund 2 4 Cl* Westerlund 2 MSP UCAC2 6537463
VSX J102358.0-574548 WR 20  
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Variability type
EA/WR
Spectral type WN6ha
Mag. range
10.65 - 11.05 Ic
Discoverer --
Epoch
29 Apr 2004 (HJD 2453124.569) Ephemeris
Outburst --
Period 3.686 d
Rise/eclipse dur. --
Remarks
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1 Wils, Patrick Both components have masses of around 80 solar masses. Mag at max = 13.45V.
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References
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1 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2011, IBVS 6008		 2011IBVS.6008....1K
2 Bonanos A.Z. et al, 2004, WR 20a is an Eclipsing Binary: Accurate
Determination of Parameters for an Extremely Massive Wolf-Rayet System		 2004ApJ...611L..33B
External Links
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Location    Go   
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 8.86H = 8.08K = 7.59J - K = 1.27
Images
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Size 5' x 5' (297 x 298 pixels)
Center 10 23 58.02 -57 45 48.9 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 ASCC 59 Open Cluster 2012A&A...548A..97Z
Revision History
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3 Admin, VSX 2011-12-24 05:45 UTC Update from [2011IBVS.6008....1K].
2 Wils, Patrick 2007-10-13 02:55 UTC Corrected variability type.
1 Wils, Patrick 2007-10-12 23:44 UTC Initial submission.

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