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Name
  S Cyg  
AAVSO UID
000-BCK-485 (17478 observations)  
Constellation
Cygnus Sequence
J2000.0
20 05 29.97 +57 59 08.7  (301.37487 +57.98575) Search nearby
B1950.0 20 04 27.37 +57 50 28.6
Proper motion
RA: -2.2 +/- 3.7 mas/yDec: 4.2 +/- 4.0 mas/ySource: UCAC4
Galactic coord. 91.773 +13.698
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J20053001+5759085 AAVSO 2003+57 BD+57 2134
IRAS 20044+5750 NSVS J2005301+575945  
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Variability type
M
Spectral type S2.5,1e(M3.5-M7e)
Mag. range
9.3 - 17.0 V
Discoverer --
Epoch
11 Aug 1979 (HJD 2444097.00) Ephemeris
Outburst --
Period 322.93 d
Rise/eclipse dur. 50%
Remarks
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Catalogue of Stellar Spectral Classifications (Skiff, 2005) 1928AnHar.100...49C
2 T. Karlsson, Maxima of Mira stars --
3 Williams S.J., Wozniak P.R., Vestrand W.T., Gupta V., 2004, Unspecified
slow variables
--
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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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 = 5.33H = 4.66K = 4.02J - K = 1.31
AllWISE W1 = 4.17W2 = 3.74W3 = 3.51W4 = 3.27W1 - W2 = 0.43W3 - W4 = 0.23
APASS-DR9 B = 15.49V = 13.31g' = 14.47r' = 12.25i' = 11.02B - V = 2.18
Images
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Supporting Documents
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Campaigns/Programs
 LPV Program
 LPV Humps
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2011-12-13 20:29 UTC Primary record creation. Minimum magnitude from AAVSO V-data. UCAC3 position.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.