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Latest Details
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| Name |
UCAC4 662-089473 |
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| AAVSO UID |
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000-BNX-615 (No observations) |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
20 38 06.59 +42 12 09.7 |
| Galactic coord. |
81.821 +0.443 |
Other names
(Internal only)
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2MASS J20395358+4222505 |
ATO J309.9733+42.3807 |
Gaia DR3 2066444761951095808 |
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TIC 195381536 |
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(Not logged in) Add name
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| Variability type |
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HB:+VAR |
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| Spectral type |
B1Iae |
| Mag. range |
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13.57 - 13.85 V |
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| Discoverer |
Kirill Sokolovsky, Stanislav Korotkiy, Olga Smolyankina |
| Epoch |
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| Outburst |
-- |
| Period |
12.400 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 |
Sokolovsky, Kirill
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J-K = 1.52 +/-0.03. Heartbeat amplitude 0.17 mag. Spectral type from Berlanas et al. (2018) who mention the object is a possible SB2 binary. Long-term increase of mean brightness in ASAS-SN and ATLAS data over six years. Variability discovered while processing the NMW survey images. |
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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 |
Herrero, A.; Berlanas, S. R.; Gil de Paz, A.; et al., 2022, The nature of
the Cygnus extreme B supergiant 2MASS J20395358+4222505 |
2022MNRAS.511.3113H |
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2 |
Tonry, J. L.; et al., 2018, ATLAS: A High-cadence All-sky Survey System |
2018PASP..130f4505T |
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3 |
Berlanas, S. R.; et al., 2018, New massive members of Cygnus OB2 |
2018A&A...612A..50B |
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4 |
Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0 |
2017PASP..129j4502K |
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5 |
Sokolovsky, K.; Korotkiy, S.; Lebedev, A., 2014, The New Milky Way: A
Wide-Field Survey of Optical Transients near the Galactic plane |
2014ASPC..490..395S |
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Images
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Supporting Documents
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Revision History
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