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Name
  R Ara  
AAVSO UID
000-BCT-764 (2169 observations)  
Constellation
Ara Sequence
J2000.0
16 39 45.11 -56 59 41.8  (249.93796 -56.99494) Search nearby
B1950.0 16 35 35.31 -56 53 48.6
Proper motion
RA: -7.698 +/- 0.080 mas/yDec: -15.938 +/- 0.063 mas/ySource: Gaia DR1
Galactic coord. 330.352 -6.830
Other names

(Internal only)
AAVSO 1631-56 CD-56 6482 CPD-56 7804
HD 149730 HIP 81589 SAO 244037
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Variability type
EA
Spectral type B9Vp
Mag. range
6.17 - 7.32 V
Discoverer --
Epoch
12 Aug 1988 (HJD 2447386.12) Ephemeris
Outburst --
Period 4.42522 d
Rise/eclipse dur. 14%
Remarks
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1 GCVS Team Min II 6.2. VB A (B 8.2mV, 4", 123deg).
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References
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1 J.S. Nichols et al., 2010, ApJS 188, 473 2010ApJS..188..473N
2 J.S. Nichols et al., 2010, ApJS 188, 473 (online data) 2010ApJS..188..473N
3 E.Hertzsprung, BAN 9, 275, 1942. 1942BAN.....9..275H
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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 = 6.64H = 6.70K = 6.39J - K = 0.26
Images
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Supporting Documents
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Revision History
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3 Admin, VSX 2010-10-25 20:23 UTC Update from [2010ApJS..188..473N].
2 Admin, VSX 2010-01-04 23:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.