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Name
  RV Cyg  
AAVSO UID
000-BCV-603 (10824 observations)  
Constellation
Cygnus Sequence
J2000.0
21 43 16.33 +38 01 03.0  (325.81804 +38.01750) Search nearby
B1950.0 21 41 12.06 +37 47 16.8
Proper motion
RA: -7.06 +/- 0.40 mas/yDec: -7.00 +/- 0.50 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 86.911 -11.360
Other names

(Internal only)
AAVSO 2139+37 ASASSN-V J214316.39+380103.8 BD+37 4407
HD 206750 HIP 107242 IRC +40491
RAFGL 2798 SAO 71642  
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Variability type
SRB
Spectral type C6,4e(N5)
Mag. range
10.8 - 12.4 p
Discoverer Safarik (1886)
Epoch
--
Outburst --
Period 263 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team VB A (B 10m, 142", 118deg).
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References
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1 S.Gaposchkin, HA 118, N8, 1952. 1952AnHar.118....5G
2 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
3 J.G.Hagen, ASV IV, 1907. --
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 = 2.83H = 1.48K = 0.75J - K = 2.08
AllWISE W3 = -0.72W4 = -1.24W3 - W4 = 0.52
APASS-DR9 B = 12.44g' = 10.18
Images
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Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
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3 Fernig, Leo 2022-04-22 13:36 UTC Discoverer updated from 1907AnHar..55....1C page 30
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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