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
  GSC 02699-00921  
AAVSO UID
000-BLV-702 (24 observations)  
Constellation
Cygnus Sequence
J2000.0
20 44 55.19 +37 09 29.2  (311.22996 +37.15811) Search nearby
B1950.0 20 42 59.55 +36 58 32.0
Proper motion
RA: 3.9 +/- 2.2 mas/yDec: -4.7 +/- 2.3 mas/ySource: UCAC4
Galactic coord. 78.297 -3.533
Other names

(Internal only)
2MASS J20445517+3709289 ASASSN-V J204455.27+370929.2 IRAS 20430+3658A
TYC 2699-921-1 VES 237  
(Not logged in)  Add name
Variability type
SR
Spectral type em
Mag. range
11.55 V (0.4)clear
Discoverer David Conner
Epoch
05 Oct 2014 (HJD 2456936.0) Ephemeris
Outburst --
Period 37.3 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Conner, David S Spectral type from Catalogue of Stellar Spectral Classifications (Skiff, 2009-2014).
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2014) 2014yCat....102023S
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 = 4.95H = 4.30K = 3.77J - K = 1.18
AllWISE W1 = 3.62W2 = 3.44W3 = 3.48W4 = 3.27W1 - W2 = 0.17W3 - W4 = 0.21
APASS-DR9 B = 13.29V = 11.49g' = 12.31r' = 10.61i' = 8.37B - V = 1.79
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
1 GSC 02699-00921 light curve, phase diagram and suggested period Conner, David S 2016-01-18 23:05 UTC Light curve and phase diagram of GSC 02699-00921 derived from 82 unfiltered images taken with the Bradford Robotic Telescope between 2012 July 26 and 2014 December 24. A best fit period of 37.3 days is suggested.
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1 Conner, David S 2016-01-18 23:27 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]
172.30.4.30