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Name
  BG Cyg  
AAVSO UID
000-BCH-393 (15502 observations)  
Constellation
Cygnus Sequence
J2000.0
19 38 57.70 +28 30 47.0  (294.74042 +28.51306) Search nearby
B1950.0 19 36 56.93 +28 23 51.5
Galactic coord. 63.473 +3.248
Other names

(Internal only)
AAVSO 1934+28 AN 113.1914 HIP 96647
IRC +30379 RAFGL 2426  
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Variability type
M
Spectral type M7e-M8e
Mag. range
9 - 12.8 V
Discoverer --
Epoch
02 Oct 1978 (HJD 2443784) Ephemeris
Outburst --
Period 288 d
Rise/eclipse dur. 30%  (86 d)
Remarks
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1 GCVS Team P var. Max = 2421190 + 290.35d*E (JD2421150 - 29950); Max = 2430546 + 307.3d*E (JD2429950 - 30850); Max = 2432872 + 289.5d*E (JD2430850 - 34920); since JD2435100 - see Table.
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References
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1 Hartwig, E.; Kempf, P.; Muller, G., 1919, Benennung von neu entdeckten
veraenderlichen Sternen		 1919AN....208...57.
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
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Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
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3 Fernig, Leo 2023-03-29 20:21 UTC Discoverer updated from 1919AN....208...57. page 66.
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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