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Name
  UY Cyg  
AAVSO UID
000-BCM-915 (1015 observations)  
Constellation
Cygnus Sequence
J2000.0
20 56 28.30 +30 25 40.0  (314.11792 +30.42778) Search nearby
B1950.0 20 54 22.76 +30 14 05.6
Galactic coord. 74.546 -9.629
Other names

(Internal only)
AAVSO 2052+30 AN 1.1902 HD 335336
HIP 103364    
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Variability type
RRAB
Spectral type A8-F5
Mag. range
10.59 - 11.46 V
Discoverer --
Epoch
19 Apr 1920 (HJD 2422433.727) Ephemeris
Outburst --
Period 0.56070478 d  (13.456915 h)
Rise/eclipse dur. 22%  (2.9605 h)
Remarks
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1 GCVS Team Delta(S) = 3.8.
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References
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1 Greer, P. A.; Payne, S. G.; Norton, A. J.; et al., 2017, The SuperWASP
catalogue of 4963 RR Lyr stars: identification of 983 Blazhko effect
candidates
2017A&A...607A..11G
2 E.R.Mustel, Perem. Zvezdy 4, 336, 1934. --
3 M.Esch, J.G.Hagen, ASV VII, 1927. --
4 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
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Supporting Documents
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Revision History
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3 Fernig, Leo 2022-04-22 13:36 UTC Discoverer updated from 1907AnHar..55....1C page 29
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.