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  SX Cyg  
000-BCL-117 (8314 observations)  
Cygnus Sequence
20 15 33.52 +31 04 20.1  (303.88967 +31.07225) Search nearby
B1950.0 20 13 33.26 +30 55 05.9
Proper motion
RA: -11.3 +/- 3.4 mas/yDec: -19.8 +/- 1.7 mas/ySource: UCAC4
Galactic coord. 69.797 -2.190
Other names

(Internal only)
AAVSO 2011+30 BD+30 3960 HD 192788
IOMC 2672000062 IRC +30423 RAFGL 2538
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Variability type
Spectral type M7e
Mag. range
8.2 - 15.2 V
Discoverer T.D. Anderson, 1899
25 Jul 1979 (HJD 2444080) Ephemeris
Outburst --
Period 411.02 d
Rise/eclipse dur. 41%  (168.5182000000000 d)
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
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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 = 3.31H = 2.42K = 1.75J - K = 1.56
AllWISE W3 = -0.09W4 = -0.57W3 - W4 = 0.48
APASS-DR9 B = 11.83g' = 13.72r' = 12.33
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 LPV Program
 LPV Humps
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.