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Name
  AF Cyg  
AAVSO UID
000-BCG-935 (90032 observations)  
Constellation
Cygnus Sequence
J2000.0
19 30 12.85 +46 08 52.1  (292.55354 +46.14781) Search nearby
B1950.0 19 28 43.10 +46 02 30.9
Proper motion
RA: 45.54 +/- 0.78 mas/yDec: -4.52 +/- 0.66 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 78.434 +13.003
Other names

(Internal only)
AAVSO 1927+45 AN 70.1910 BD+45 2913
HD 184008 HIP 95902 HV 3256
IRC +50297 KID 9528112 RAFGL 2407
SAO 48521    
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Variability type
SRB
Spectral type M4-M8
Mag. range
6.2 - 7.9 V
Discoverer Williamina Fleming (1910)
Epoch
25 Sep 2018 (HJD 2458387.0) Ephemeris
Outburst --
Period 93.0 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team Light curve (1914 - 1956) [M.W.Mayall, JRAS Can 50, N6, 269, 1956.]. Two more independent oscillations are superimposed: P2 = 175.8d, P3 = 941.2d.
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References
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1 C. Koen, L. Eyer, 2002, MNRAS 331, 45 2002MNRAS.331...45K
2 The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
3 Dunér, N. C.; Hartwig, E.; Muller, G., 1910, Benennung von neu entdeckten
veränderlichen Sternen
1910AN....186..273D
4 I.A.Klyus, Astron. Tsirk. N1070, 1979. --
5 Planet Hunters --
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 = 1.70H = 0.61K = 0.45J - K = 1.25
AllWISE W3 = -0.47W4 = -1.29W3 - W4 = 0.82
Images
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Supporting Documents
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Campaigns/Programs
 Binocular program
 Legacy LPV Program
 LPV Program
Revision History
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5 Fernig, Leo 2022-09-21 20:32 UTC Discoverer updated from 1910AN....186..273D p283
4 Otero, Sebastian Alberto 2019-07-09 03:25 UTC Period, epoch and range from AAVSO V data.
3 Otero, Sebastian Alberto 2011-08-15 23:54 UTC Range from AAVSO and Hipparcos/Tycho data. Spectral type from Skiff (2010).
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.