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Latest Details
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| Name |
SY 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 44 38.93 +32 34 52.8 |
| Proper motion |
| RA: 0.810 +/- 0.794 mas/y | Dec: -2.413 +/- 0.708 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
67.935 +3.896 |
Other names
(Internal only)
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BD+32 3556 |
HD 331133 |
IOMC 2660000059 |
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| Variability type |
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EA/SD |
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| Spectral type |
A3 |
| Mag. range |
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10.7 - 14.2 p |
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| Discoverer |
Lidiya Ceraski (1899) |
| Epoch |
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| Outburst |
-- |
| Period |
6.0055115 d |
| Rise/eclipse dur. |
11% (15.854550360000 h) |
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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 |
d = 0.040P. Possible depth of Min II 0.03m. P var. Min I = 2411659.568 + 6.00584d*E (JD2411600 - 17100); Min I = 2420001.571 + 6.005716d*E (JD2418760 - 20760) [A.A.Nijland, AN 228, 177-216, 1926.]; Min I = 2437069.254 + 6.005626d*E (JD2432800 - 37070) [R.Szafraniec, AA 20, 25, 1970.]. Mean elements given in the Table represent epochs of Min I in the interval JD2414400 - 37070 up to +- 0.07d. According to [A.A.Wachmann, Bergd Abh 6, N1, 1961.] the apsidal motion with the period ~46 years is possible. |
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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 |
Bob Nelson's O-C files, 2016 |
-- |
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2 |
J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info) |
2012arXiv1210.0821A |
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3 |
A.A.Wachmann, Bergd Abh 6, N1, 1961. |
1961AAHam...6....1W |
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4 |
Cannon, A. J., 1907, Second catalogue of variable stars |
1907AnHar..55....1C |
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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 = 10.03 | H = 9.72 | K = 9.62 | J - K = 0.41 |
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AllWISE
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W1 = 9.61 | W2 = 9.64 | W3 = 9.67 | W1 - W2 = -0.03 |
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Images
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Supporting Documents
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Revision History
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