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Details for Revision 1
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Name
  VSX J213157.7+511146  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
21 31 57.78 +51 11 46.0  (322.99075 +51.19611) Search nearby
B1950.0 21 30 14.12 +50 58 27.9
Galactic coord. 94.304 -0.236
Other names

(Internal only)
ASASSN-V J213157.78+511146.0 USNO-B1.0 1411-0396746  
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Variability type
EW
Spectral type --
Mag. range
15.400 - 15.513 CV
Discoverer Enrique de Miguel (CBA, Spain)
Epoch
23 Oct 2010 (HJD 2455493.3916) Ephemeris
Outburst --
Period 0.421708 d  (10.1210 h)
Rise/eclipse dur. --
Remarks
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References
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1 Qian, S.-B.; Zhu, L.-Y.; Liu, L.; et al., 2020, Contact binaries at
different evolutionary stages		 2020RAA....20..163Q
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Supporting Documents
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1 Phased light curve 2MASS J21315777+5111459 de Miguel , Enrique 2011-11-19 00:43 UTC Phased and binned light curve. Differential photometry carried out using GSC 03602-00568 (V=12.34) as comparison star.
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Revision History
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2 Otero, Sebastian Alberto 2023-04-23 16:25 UTC Spectral type from 2020RAA....20..163Q.
1 de Miguel , Enrique 2011-11-19 02:02 UTC Initial submission.

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