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Latest Details
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| Name |
V1057 Cyg |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
20 57 06.30 +44 03 46.0 |
| Proper motion |
| RA: -1.2 +/- 3.7 mas/y | Dec: -1.5 +/- 3.0 mas/y | Source: UCAC4 |
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| Galactic coord. |
85.460 -1.047 |
Other names
(Internal only)
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AAVSO 2055+43 |
ASASSN-V J205853.69+441527.1 |
HBC 300 |
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IOMC 3179000128 |
LkHA 190 |
SON 7817 |
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| Variability type |
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FUOR |
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| Spectral type |
B3-Ke(T) |
| Mag. range |
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10.3 - 16.5 B |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
-- |
| 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 the dark nebula, in the region of the North America nebula (NGC 7000). In 1969 - 70 (JD2440400 - 830) the outburst from 16.5m to 10.3m occured. Brightness maximum was observed at JD2440830 (spectrum - B3). Before the outburst the light changed in the range 15.5m - 16.5m, the spectral type was Ke with characteristic features of T Tau type stars [G.H.Herbig, ApJ 128, 259, 1958., G.H.Herbig, N.K.Rao, Lick Contr N355=ApJ 174, 401, 1972.]. After the outburst the brightness began to weaken monotonouosly and in 1982 reached 13.1m B (the spectral type about G2 - G5 Ib). Strong Halpha emission appeared in 1971. There are also small rapid light fluctuations. Description of light variations [L.Meinunger, W.Wenzel, MVS 5, H.9, 170, 1971., F.Gieseking, Bonn Veroeff N87, 1973., A.Ya.Filin, Perem. Zvezdy Supplement 2, N8, 63, 1974., O.E.Mandel', Perem. Zvezdy 20, N1, 123, 1975.]. The star is associated with a luminous arc-shaped reflection nebula. This nebula with length of about 3' appeared in 1971 and its brightness is gradually decreasing simultaneously with the fading of the star. |
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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 |
Kopatskaya, E. N.; Kolotilov, E. A.; Arkharov, A. A., 2013, Photometric
behaviour of the FU Orionis type star, V1057 Cygni, during the last 25
years |
2013MNRAS.434...38K |
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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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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 = 8.05 | H = 7.04 | K = 6.23 | J - K = 1.82 |
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AllWISE
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W1 = 5.00 | W2 = 3.97 | W3 = 1.70 | W4 = -0.34 | W1 - W2 = 1.03 | W3 - W4 = 2.04 |
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APASS-DR9
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B = 14.26 | V = 12.33 | g' = 13.45 | r' = 11.61 | i' = 10.73 | B - V = 1.93 |
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Images
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Supporting Documents
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Campaigns/Programs
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YSO Program
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Revision History
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