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Latest Details
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| Name |
V Sge |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
20 18 02.06 +20 56 38.9 |
| Proper motion |
| RA: -1.045 +/- 2.146 mas/y | Dec: -6.497 +/- 1.686 mas/y | Source: Gaia DR1 |
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| Galactic coord. |
62.053 -8.602 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 2015+20 |
AN 21.1902 |
Downes V Sge |
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Hen 3-1879 |
NSVS J2020147+210612 |
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(Not logged in) Add name
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| Variability type |
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CBSS/V+E |
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| Spectral type |
pec(cont+e) |
| Mag. range |
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8.6 - 13.9 V |
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| Discoverer |
L. Ceraski |
| Epoch |
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| Outburst |
-- |
| Period |
0.514195 d (12.3407 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 |
Otero, Sebastian Alberto
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V Sge star. |
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2 |
GCVS Team |
VB A (B 13.9m, 9.7", 267deg); SB2 (K1 = 320 km/s, K2 = 85 km/s). P var? The depth of eclipses varies from 0.6m to 1.3m. The mean brightness outside eclipses varies. There are also flares with amplitudes up to 3m and small light variations with a time scale of minutes, dozens of minutes and a few days. spectrum description [G.H.Herbig, G.W.Preston, J.Smak, B.Paczynski, ApJ 141, 617, 1965., G.Williams, ApJ Suppl 53, N3, 523, 1983.]. |
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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 |
Transient jets in V617 Sagittarii |
2007A&A...471L..25S |
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3 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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4 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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5 |
G.H.Herbig, G.W.Preston, J.Smak, B.Paczynski, ApJ 141, 617, 1965. |
1965ApJ...141..617H |
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6 |
A.Brun, BASF 69, Sept., 1955. |
-- |
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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 = 10.31 | H = 10.11 | K = 9.81 | J - K = 0.50 |
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AllWISE
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W1 = 9.49 | W2 = 9.09 | W3 = 7.87 | W4 = 6.75 | W1 - W2 = 0.40 | W3 - W4 = 1.12 |
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APASS-DR9
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B = 11.23 | V = 11.35 | g' = 11.16 | r' = 11.27 | i' = 11.37 | B - V = -0.11 |
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Images
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Supporting Documents
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Revision History
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