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Latest Details
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Name
  BS Sco  
AAVSO UID
000-BFK-412 (26 observations)  
Constellation
Scorpius Sequence
J2000.0
17 55 04.42 -31 38 34.9  (268.76842 -31.64303) Search nearby
B1950.0 17 51 49.53 -31 38 06.2
Proper motion
RA: 3.2 +/- 1.5 mas/yDec: -1.5 +/- 1.5 mas/ySource: UCAC4
Galactic coord. 358.719 -3.139
Other names

(Internal only)
CD-31 14786 CPD-31 5087 HD 318614
HV 3886 IOMC 7378000028  
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Variability type
EA/SD
Spectral type B5V
Mag. range
11.5 - 13.2 p
Discoverer Annie J. Cannon (1925)
Epoch
25 Aug 2003 (HJD 2452876.953) Ephemeris
Outburst --
Period 7.62241175 d
Rise/eclipse dur. 10%  (18.2938 h)
Remarks
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1 GCVS Team d <= 0.03P. According to [A.J.Cannon, M.W.Mayall, HA 112, 1949.], SP F8.
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 P. Zasche, 2010, New Astronomy 15, 150 2010NewA...15..150Z
3 E.Hertzsprung, BAN 9, 203, 1941. 1941BAN.....9..203H
4 Guthnick, P.; et al., 1926, Benennung von neu entdeckten veränderlichen
Sternen
1926AN....227..161G
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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Location    Go   
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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 = 9.73H = 9.57K = 9.48J - K = 0.26
AllWISE W1 = 9.24W2 = 9.22W3 = 8.88W4 = 6.70W1 - W2 = 0.02W3 - W4 = 2.18
APASS-DR9 B = 11.14V = 10.77g' = 10.90r' = 10.64i' = 10.56B - V = 0.36
Images
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Supporting Documents
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Revision History
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4 Fernig, Leo 2023-07-05 21:38 UTC Discoverer updated from 1926AN....227..161G page 169.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-11-13 04:56 UTC Update from [2010NewA...15..150Z].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.