Astronomy:W Corvi
From HandWiki
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 07m 34.360s[2] |
| Declination | −13° 08′ 59.02″[2] |
| Apparent magnitude (V) | 11.16 - 12.5[3] |
| Characteristics | |
| Evolutionary stage | Beta Lyrae variable |
| Spectral type | G- |
| Astrometry | |
| Proper motion (μ) | RA: -18.8 ± 2.1 mas/yr Dec.: 18.2 ± 2.1 mas/yr |
| Details | |
| Other designations | |
W Corvi, BD−12° 3565 | |
| Database references | |
| SIMBAD | data |
W Corvi is an eclipsing binary star system in the constellation Corvus, ranging from apparent magnitude 11.16 to 12.5 over 9 hours.[3] Its period has increased by 1/4 second over a century. It is an unusual system in that its two stars are very close to each other yet have different surface temperatures and hence thermal transfer is not taking place as expected.[4]
References
- ↑ Odell, A. P.; Cushing, G. E. (March 2004). "Changes in the Period and Light Curve of W Corvi". Information Bulletin on Variable Stars 5514: 1. Bibcode: 2004IBVS.5514....1O. https://ui.adsabs.harvard.edu/abs/2004IBVS.5514....1O. Retrieved 17 December 2021.
- ↑ 2.0 2.1 "W Crv -- Eclipsing binary of beta Lyr type (semi-detached)". http://simbad.u-strasbg.fr/simbad/sim-id?Ident=W+Crv&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id. Retrieved 21 July 2015.
- ↑ 3.0 3.1 Watson, Christopher (4 January 2010). "W Corvi". The International Variable Star Index. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10676. Retrieved 21 July 2015.
- ↑ Odell, Andrew P. (1996). "Changes in the Period and Light Curve of W Corvi". Monthly Notices of the Royal Astronomical Society 282 (2): 373–83. doi:10.1093/mnras/282.2.373. Bibcode: 1996MNRAS.282..373O.
 |  |
