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Latest Details
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Name
  ASAS J100121-5731.4  
AAVSO UID
--  
Constellation
Carina Sequence
J2000.0
10 01 20.54 -57 31 23.7  (150.33558 -57.52325) Search nearby
B1950.0 09 59 38.89 -57 16 54.7
Proper motion
RA: -3.953 +/- 1.098 mas/yDec: 2.006 +/- 0.682 mas/ySource: Gaia DR1
Galactic coord. 281.640 -1.861
Other names

(Internal only)
2MASS J10012053-5731236 ALS 1390 ASAS 100121-5731.4
ASASSN-V J100120.75-573123.3 CPD-56 2763 GDS_J1001205-573123
GSC 08607-00732 Hbg 354 LS 1390
TYC 8607-732-1    
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Variability type
EA
Spectral type OB
Mag. range
10.56 - 10.80 V
Discoverer --
Epoch
21 Feb 2008 (HJD 2454517.758) Ephemeris
Outburst --
Period 1.95168 d
Rise/eclipse dur. 16%  (7.5 h)
Remarks
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1 Otero, Sebastian Alberto Distorted EA. Large ellipsoidal variability but still Algol-like primary eclipses. Min II = 10.73 V.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 Klare, G.; Szeidl, B., 1966, OB stars in the Southern Milky Way 1966VeHei..18....9K
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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 = 9.47H = 9.30K = 9.22J - K = 0.25
AllWISE W1 = 9.19W2 = 9.21W3 = 9.16W4 = 8.65W1 - W2 = -0.02W3 - W4 = 0.51
APASS-DR9 B = 11.30V = 10.72g' = 10.86r' = 10.44i' = 10.26B - V = 0.58
Images
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Supporting Documents
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Revision History
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2 Otero, Sebastian Alberto 2014-10-07 22:27 UTC Type, period, epoch, eclipe duration and range from ASAS-3 data. Spectral type from 1966VeHei..18....9K. UCAC4 position.
1 Admin, VSX 2005-12-18 01:33 UTC Preserved original object data.

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