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Latest Details
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Name
  V0780 Cyg  
AAVSO UID
000-BDN-747 (1 observation)  
Constellation
Cygnus Sequence
J2000.0
21 04 42.41 +42 54 23.2  (316.17671 +42.90644) Search nearby
B1950.0 21 02 51.72 +42 42 22.9
Galactic coord. 85.141 -2.730
Other names

(Internal only)
2MASS J21044241+4254231 ASASSN-V J210442.47+425423.4 SVS 1224
USNO-B1.0 1329-0500516    
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Variability type
M
Spectral type --
Mag. range
13.4 - <16.0 V
Discoverer --
Epoch
18 Nov 1946 (HJD 2432143) Ephemeris
Outburst --
Period 319 d
Rise/eclipse dur. 33%:  (105 d)
Remarks
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1 Otero, Sebastian Alberto J-K= 1.84. Not 2MASS J21044297+4254159 as previously thought (J= 14.32; sep. 9").
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References
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1 Caron, J.; Kugel, F., Dauban Survey, 2013, private communication --
2 D.Ya.Martynov, Perem. Zvezdy 11, N3, 170, 1957. --
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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 = 7.95H = 6.80K = 6.11J - K = 1.84
AllWISE W1 = 5.46W2 = 4.62W3 = 4.01W4 = 3.42W1 - W2 = 0.84W3 - W4 = 0.59
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2013-04-23 00:18 UTC Other names added.
3 Otero, Sebastian Alberto 2013-04-23 00:16 UTC New identification based on Dauban Survey's observations. 2MASS position.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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