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Latest Details
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| Name |
S Dra |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
16 41 51.96 +54 59 48.1 |
| Proper motion |
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| Galactic coord. |
83.341 +40.181 |
Other names
(Internal only)
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AAVSO 1640+55 |
ASASSN-V J164255.74+545412.5 |
BD+55 1870 |
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HD 151187 |
HIP 81835 |
IRC +50255 |
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RAFGL 1886 |
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| Variability type |
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SRB |
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| Spectral type |
M7 |
| Mag. range |
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10.5 - 11.5 p |
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| Discoverer |
Thomas Espin (1892) |
| Epoch |
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| Outburst |
-- |
| Period |
136: d |
| Rise/eclipse dur. |
-- |
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Remarks
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There are currently no remarks on file for this star.
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References
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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 = 1.06 | H = -0.02 | K = -0.32 | J - K = 1.38 |
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AllWISE
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W3 = -1.00 | W4 = -2.15 | W3 - W4 = 1.15 |
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APASS-DR9
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B = 10.04 |
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SDSS-DR12
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u = 10.90 | g = 9.23 | r = 7.42 | i = 10.56 | z = 8.26 | u - g = 1.66 | r - i = -3.14 |
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Images
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Supporting Documents
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Campaigns/Programs
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LPV Program
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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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