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Latest Details
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Name
  GSC 01643-01527  
AAVSO UID
000-BKG-987 (21845 observations)  
Constellation
Sagitta Sequence
J2000.0
20 19 48.31 +21 07 51.5  (304.95129 +21.13097) Search nearby
B1950.0 20 17 35.73 +20 58 21.4
Proper motion
RA: 1.8 +/- 1.4 mas/yDec: -2.9 +/- 1.2 mas/ySource: UCAC4
Galactic coord. 62.019 -8.501
Other names

(Internal only)
2MASS J20194830+2107515 ASASSN-V J201948.21+210751.5 UCAC2 39388629
VSX J201948.3+210751    
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Variability type
DSCT
Spectral type --
Mag. range
13.4 (0.1) Rc
Discoverer Donn Starkey, Bob Koff, Pierre du Pontiere, Dr. Jeff Robinson
Epoch
11 Aug 2006 (HJD 2453958.62661) Ephemeris
Outburst --
Period 0.078206 d  (112.617 min)
Rise/eclipse dur. 50%  (56.3 min)
Remarks
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References
There are currently no additional references filed for this star.
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 = 11.98H = 11.83K = 11.77J - K = 0.21
AllWISE W1 = 11.73W2 = 11.76W3 = 12.04W1 - W2 = -0.02
APASS-DR9 B = 13.05V = 12.78g' = 12.83r' = 12.73i' = 12.70B - V = 0.26
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 19 48.31 +21 07 51.5 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 Differential Observations Starkey, Donn 2006-09-02 22:54 UTC 4926 differential observations in various banpasses from 4 different observers. Data has been normaized for inclusing in the timing routine.
1 Period Documentation Starkey, Donn 2006-09-02 22:54 UTC Screen grab from PERANSO v2.1
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2012-04-01 23:07 UTC Name changed to match corrected coordinates.
2 Jones, Jim 2012-04-01 22:56 UTC Correct Position from UCAC3.
1 Starkey, Donn 2006-09-03 17:02 UTC Initial submission.

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