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Latest Details
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Name
  NSV 25509  
AAVSO UID
--  
Constellation
Cygnus Sequence
J2000.0
21 11 02.90 +45 38 14.0  (317.76208 +45.63722) Search nearby
B1950.0 21 09 15.16 +45 25 54.8
Proper motion
RA: -5.5 +/- 1.4 mas/yDec: -3.5 +/- 0.7 mas/ySource: UCAC4
Galactic coord. 87.924 -1.723
Other names

(Internal only)
--
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Variability type --
Spectral type --
Mag. range
11.9 - ? V
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 GCVS Team Flares (several magnitudes) ~ 10 sec duration [A.Antov, Priv. comm., 1988.]. Red giant [S.M.Hassan, AsAp Suppl 9, No.2, 261, 1973.].
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References
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1 A.Antov, Priv. comm., 1988. --
2 S.M.Hassan, AsAp Suppl 9, No.2, 261, 1973. 1973A&AS....9..261H
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 = 8.89H = 8.07K = 7.88J - K = 1.01
AllWISE W1 = 7.71W2 = 7.86W3 = 7.65W4 = 7.63W1 - W2 = -0.15W3 - W4 = 0.02
APASS-DR9 B = 13.61V = 12.05g' = 12.80r' = 11.38i' = 10.71B - V = 1.56
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 21 11 02.90 +45 38 14.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Stellar Association Membership
 NGC 7039 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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