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Latest Details
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| Name |
Q Cyg |
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| AAVSO UID |
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000-BCP-164 (7261 observations) |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
21 39 45.44 +42 36 46.5 |
| Proper motion |
| RA: -0.7 +/- 5.3 mas/y | Dec: -6.0 +/- 5.0 mas/y | Source: UCAC4 |
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| Galactic coord. |
89.929 -7.552 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 2137+42 |
BD+42 4182 |
Downes Q Cyg |
(Not logged in) Add name
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| Variability type |
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NA |
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| Spectral type |
pec(NOVA) |
| Mag. range |
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3 - 15.6 V |
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| Discoverer |
J. Schmidt |
| Epoch |
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| Outburst |
1876 |
| Period |
0.4202 d (10.08 h) |
| 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 |
In minimum brightness varies periodically with the amplitude 0.5m: Max = 2440495 + 54.99d*E; P = 64.81d is also possible. Mean level of brightness varies in the range 15.2m - 15.9m B. |
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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 |
Catalogue of Stellar Spectral Classifications (Skiff, 2005) |
2006PASP..118..687P |
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2 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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3 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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4 |
S.Yu.Shugarov, Perem. Zvezdy 21, N6, 807, 1983. |
1983PZ.....21..807S |
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5 |
M.L.Humason, ApJ 88, 228, 1938. |
1938ApJ....88..228H |
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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 = 13.54 | H = 13.25 | K = 13.11 | J - K = 0.44 |
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AllWISE
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W1 = 12.90 | W2 = 12.87 | W1 - W2 = 0.03 |
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APASS-DR9
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B = 15.18 | V = 14.72 | g' = 14.83 | r' = 14.57 | B - V = 0.46 |
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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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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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4 |
Admin, VSX
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2010-01-04 23:43 UTC |
Position updated from the GCVS version of November 2009. |
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3 |
Admin, VSX
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2009-09-22 20:51 UTC |
Added orbital period from Downes et al. [2001PASP..113..764D]. |
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2 |
Admin, VSX
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2007-03-23 15:52 UTC |
Discoverer added. |
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1 |
Admin, VSX
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2005-12-17 20:33 UTC |
Initial database population. |
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