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Details for Revision 2
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Name
VSX J102358.0-574548
AAVSO UID
000-BCY-350 (No observations)
Constellation
Carina
Sequence
J2000.0
10 23 58.02 -57 45 48.9 (155.99175 -57.76358)
Search nearby
B1950.0
10 22 07.58 -57 30 35.0
Galactic coord.
284.267 -0.338
Other names
(Internal only)
2MASS J10235800-5745489
UCAC2 6537463
WR 20
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Variability type
EA/WR
Spectral type
O3If*/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
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Supporting Documents
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Stellar Association Membership
ASCC 59
Open Cluster
2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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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