AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  BF Cyg  
AAVSO UID
000-BCG-634 (27371 observations)  
Constellation
Cygnus Sequence
J2000.0
19 23 53.51 +29 40 29.2  (290.97296 +29.67478) Search nearby
B1950.0 19 21 55.33 +29 34 34.8
Proper motion
RA: -1.722 +/- 0.725 mas/yDec: -6.729 +/- 0.670 mas/ySource: Gaia DR1
Galactic coord. 62.928 +6.697
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J19235351+2940292 AAVSO 1920+29 ALS 10279
AN 112.1914 Downes BF Cyg GSC 02137-00234
Hen 3-1747 LS II +29 5 MWC 315
TYC 2137-234-1    
(Not logged in)  Add name
Variability type
ZAND
Spectral type Bep+M5III
Mag. range
9.1 - 13.5 V
Discoverer --
Epoch
15 Dec 2007 (HJD 2454450) Ephemeris
Outburst --
Period 755 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team P orb = 750d [A.A.Boyarchuk, Izv. Krymsk. Astrofiz. Obs. 39, 124, 1969.]. Irregular light variations and sometimes observed brightenings by 2m - 3m are superimposed by semiregular oscillations with the cycle 755d [L.Jacchia, HB N915, 1941., M.Beyer, Bamb Ver 10, N120, 1976.].
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
2 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
3 J.G.Hagen, J.Stein, ASV VIII. 1989eerz.book.....H
4 M.Beyer, Bamb Ver 10, N120, 1976. --
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
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 = 7.57H = 6.61K = 6.27J - K = 1.31
AllWISE W1 = 5.89W2 = 5.80W3 = 5.48W4 = 5.02W1 - W2 = 0.09W3 - W4 = 0.46
APASS-DR9 B = 10.69V = 10.04g' = 10.44r' = 9.66i' = 9.24B - V = 0.65
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Stellar Association Membership
 ASCC 102 Open Cluster 2012A&A...548A..97Z
Campaigns/Programs
 Legacy CVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2016-06-08 02:51 UTC Period, epoch and range from AAVSO data.
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.