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Latest Details
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| Name |
V1668 Cyg |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
21 40 38.15 +43 48 09.6 |
| Galactic coord. |
90.838 -6.760 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 2138+43B |
Downes V1668 Cyg |
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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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6 - 20.0: V |
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| Discoverer |
W. Morrison/P. L. Collins |
| Epoch |
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| Outburst |
1978 |
| Period |
0.1384 d (3.32 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 |
There are sinusoidal light variations with A(V) = 0.15m and elements Min = 2443767.475 + 0.4392d*E in the descending branch of the light curve after JD2443765 [F.Campolonghi, R.Gilmozzi, U.Guidoni, R.Messi, G.Natali, J.Wells, AsAp 85, L4, 1980.]. Infrared light curves (1.6 - 10 mkm) have a secondary maximum (JD2443815) due to the formation of the dust envelope. At 10 mkm this secondary maximum is brighter than the primary one [R.D.Gehrz, J.A.Hackwell, G.L. Grasdalen, E.P.Ney, G.Neugerauer, K.Sellgren, ApJ 239, N2, 570, 1980.]. |
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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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R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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A.Paolantonio, R.Patriarca, P.Tempesti, IBVS N1913, 1981. |
1981IBVS.1913....1D |
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H.W.Duerbeck, H.Pollok, IBVS N1845, 1980. |
1980IBVS.1845....1D |
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External Links
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Supporting Documents
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Campaigns/Programs
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Legacy CVs
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Revision History
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