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Latest Details
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| Name |
BF Cyg |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
19 21 55.33 +29 34 34.8 |
| Proper motion |
| RA: -1.722 +/- 0.725 mas/y | Dec: -6.729 +/- 0.670 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
62.928 +6.697 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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2MASS J19235351+2940292 |
AAVSO 1920+29 |
ALS 10279 |
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AN 112.1914 |
ASASSN-V J192353.65+294029.5 |
Downes BF Cyg |
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GSC 02137-00234 |
Hen 3-1747 |
LS II +29 5 |
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MWC 315 |
TYC 2137-234-1 |
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| Variability type |
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ZAND |
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| Spectral type |
Bep+M5III |
| Mag. range |
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9.1 - 13.5 V |
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| Discoverer |
Charles d'Esterre (1914) |
| Epoch |
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| Outburst |
-- |
| Period |
755 d |
| Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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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.]. |
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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2 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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J.G.Hagen, J.Stein, ASV VIII. |
1989eerz.book.....H |
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4 |
M.Beyer, Bamb Ver 10, N120, 1976. |
-- |
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5 |
Hartwig, E.; Kempf, P.; Muller, G., 1919, Benennung von neu entdeckten
veraenderlichen Sternen |
1919AN....208...57. |
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External Links
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Location
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 7.57 | H = 6.61 | K = 6.27 | J - K = 1.31 |
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AllWISE
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W1 = 5.89 | W2 = 5.80 | W3 = 5.48 | W4 = 5.02 | W1 - W2 = 0.09 | W3 - W4 = 0.46 |
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APASS-DR9
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B = 10.69 | V = 10.04 | g' = 10.44 | r' = 9.66 | i' = 9.24 | B - V = 0.65 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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Stellar Association Membership
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ASCC 102 |
Open Cluster |
2012A&A...548A..97Z |
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Campaigns/Programs
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Legacy CVs
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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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