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Name
  SS Ara  
AAVSO UID
--  
Constellation
Ara Sequence
J2000.0
17 58 19.09 -50 09 39.6  (269.57954 -50.16100) Search nearby
B1950.0 17 54 25.35 -50 09 23.8
Proper motion
RA: -11.405 +/- 0.099 mas/yDec: 1.132 +/- 0.069 mas/ySource: Gaia DR1
Galactic coord. 342.652 -12.659
Other names

(Internal only)
ASAS J175819-5009.7 CD-50 11652 CPD-50 10482
HD 163341 HIP 87980 TYC 8352-878-1
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Variability type
BY:
Spectral type K2/4V:
Mag. range
9.28 (0.03) V
Discoverer Heroy Jenkins (1914)
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Visual binary. A= 9.66; B= 11.19 Hp; sep. 0".15. Secular brightening in Hipparcos data may be caused by duplicity. ASAS-3 data suggests a period of 27.54 d. but the data show too much scatter.
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References
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1 N.N Samus, E.N. Pastukhova, O.V. Durlevich, 2007, PZ 27, 6 2007PZ.....27....6S
2 The All Sky Automated Survey 2002AcA....52..397P
3 H.Shapley, E.H.Boyce, C.D.Boyd, HA 90, N9, 239-251, 1939. 1940AnHar..90..239S
4 Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen
1921AN....212..353.
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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 = 6.35H = 5.54K = 5.28J - K = 1.07
AllWISE W1 = 5.26W2 = 5.24W3 = 5.25W4 = 5.13W1 - W2 = 0.03W3 - W4 = 0.12
Images
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Supporting Documents
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Revision History
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5 Fernig, Leo 2023-03-29 20:24 UTC Discoverer updated from 1921AN....212..353. page 370.
4 Otero, Sebastian Alberto 2012-07-23 23:54 UTC Type and range from Hipparcos and ASAS-3 data.
3 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
2 Admin, VSX 2008-08-27 02:29 UTC Update from [2007PZ.....27....6S].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.