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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
BC 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 19 46.68 +37 22 21.9 |
| Proper motion |
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| Galactic coord. |
75.845 +0.408 |
Other names
(Internal only)
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AAVSO 2017+37A |
AN 75.1911 |
ASASSN-V J202138.59+373159.6 |
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BD+37 3903 |
DO 18917 |
HIP 100404 |
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HV 3339 |
IOMC 3152000072 |
IRAS 20197+3722 |
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IRC +40409 |
NGC 6913 +37 533 |
RAFGL 2560 |
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TYC 3152-1032-1 |
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(Not logged in) Add name
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| Variability type |
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SRC |
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| Spectral type |
M3.5Ia |
| Mag. range |
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9.0 - 10.1 V |
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| Discoverer |
Louisa Wells (1911) |
| Epoch |
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| Outburst |
-- |
| Period |
700 d |
| 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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Elements in the table are for the minima of the long period variability which was more evident in past decades. |
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(Not logged in) Add remark
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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 |
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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2 |
A.K.Alksnis, Z.K.Alksne, I.A. Daube, Photometric Studies on Red Stars (in
russian), ed. "Zinatne" Riga, 1973, p.115- 130. |
-- |
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3 |
Dunér, N. C.; et al., 1914, Benennung von neu entdeckten veränderlichen
Sternen |
1914AN....199...65D |
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External Links
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Location
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Select a Location for more details.
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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 = 2.12 | H = 0.72 | K = 0.30 | J - K = 1.82 |
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APASS-DR9
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B = 12.90 | V = 9.66 | g' = 11.32 | r' = 8.23 | i' = 5.89 | B - V = 3.24 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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Campaigns/Programs
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SNEWS Campaign
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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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4 |
Fernig, Leo
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2022-06-29 19:58 UTC |
Discoverer updated from 1914AN....199...65D page 85 |
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3 |
Otero, Sebastian Alberto
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2018-03-28 23:12 UTC |
Period and epoch from AAVSO data. Maximum magnitude from the GCPD. Minimum magnitude from INTEGRAL-OMC, ASAS-SN and AAVSO V data. |
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2 |
Admin, VSX
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2010-01-05 04:43 UTC |
Position updated from the GCVS version of November 2009. |
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1 |
Admin, VSX
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2005-12-18 01:33 UTC |
Initial upload. |
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