AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  2MASS J21315777+5111459  
AAVSO UID
000-BKG-471 (916 observations)  
Constellation
Cygnus Sequence
J2000.0
21 31 57.78 +51 11 45.9  (322.99073 +51.19609) Search nearby
B1950.0 21 30 14.19 +50 58 28.4
Proper motion
RA: -14.1 +/- 4.8 mas/yDec: -10.5 +/- 4.8 mas/ySource: UCAC4
Galactic coord. 94.304 -0.236
Other names

(Internal only)
ASASSN-V J213157.78+511146.0 USNO-B1.0 1411-0396746 VSX J213157.7+511146
(Not logged in)  Add name
Variability type
EW
Spectral type F5
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
There are currently no remarks on file for this star. (Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Qian, S.-B.; Zhu, L.-Y.; Liu, L.; et al., 2020, Contact binaries at
different evolutionary stages		 2020RAA....20..163Q
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
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 = 13.33H = 12.91K = 12.73J - K = 0.60
AllWISE W1 = 12.55W2 = 12.71W1 - W2 = -0.16
APASS-DR9 B = 16.57V = 15.44g' = 16.02r' = 15.04i' = 14.56B - V = 1.12
SDSS-DR12 u = 18.04g = 16.23r = 15.27i = 14.80z = 14.52u - g = 1.81r - i = 0.47
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 31 57.78 +51 11 45.9 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
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.
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.0.162