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Name
  V0539 Ara  
AAVSO UID
000-BDG-442 (27 observations)  
Constellation
Ara Sequence
J2000.0
17 50 28.39 -53 36 44.6  (267.61829 -53.61239) Search nearby
B1950.0 17 46 24.12 -53 35 53.5
Proper motion
RA: 3.18 +/- 0.51 mas/yDec: -11.40 +/- 0.32 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 338.940 -13.196
Other names

(Internal only)
CD-53 7423 CPD-53 8799 HD 161783
HIP 87314 HR 6622 SAO 245065
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Variability type
EA+SPB
Spectral type B2V+B3V
Mag. range
5.71 - 6.24 V
Discoverer --
Epoch
10 May 1992 (HJD 2448753.44) Ephemeris
Outburst --
Period 3.169094 d
Rise/eclipse dur. 11%  (8.37 h)
Remarks
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1 Otero, Sebastian Alberto Apsidal motion.
2 GCVS Team VB A (B 9.22m, 12", 269deg). Min II 6.09, d = 0.01P. Shown in the chart for BV1441 = V538 Ara.
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References
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1 Bob Nelson's O-C files, 2016 --
2 G.F.G.Knipe, AsAp 14, 70, 1971. 1971A&A....14...70K
3 D.Friedrich, E.Schoeffel, Bamb Ver 8, N95, 1971. --
4 CALEB - Catalog and AtLas of Eclipsing Binaries --
External Links
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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 = 5.88H = 5.91K = 5.97J - K = -0.09
AllWISE W1 = 6.06W2 = 6.00W3 = 6.13W4 = 6.07W1 - W2 = 0.06W3 - W4 = 0.06
APASS-DR9
Images
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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