V1057 Cygni
V1057 Cygni (V1057 Cyg) is a FU Orionis-type variable star in the constellation of Cygnus.[1] It has a spectral type of F and an apparent visual magnitude of approximately 11.660.[1] It was the second FU Orionis-type variable discovered.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 58m 53.732s[1] |
| Declination | +44° 15′ 28.54″[1] |
| Apparent magnitude (V) | 11.660[1] |
| Characteristics | |
| Spectral type | F7/G3 I/IIe[2] |
| B−V color index | 3.8[1] |
| Variable type | FU Ori[1] |
| Other designations | |
V1057 Cyg | |
| Database references | |
| SIMBAD | data |
References
- V* V1057 Cyg -- Variable Star of FU Ori type, database entry, SIMBAD. Accessed on line July 1, 2009.
- Herbig, G. H.; Petrov, P. P.; Duemmler, R. (2003). "High-Resolution Spectroscopy of FU Orionis Stars". The Astrophysical Journal. 595: 384. arXiv:astro-ph/0306559. Bibcode:2003ApJ...595..384H. doi:10.1086/377194.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.