RV Corvi

RV Corvi is an eclipsing binary star system in the constellation Corvus, ranging from apparent magnitude 8.6 to 9.16 over 18 hours.[2] The system is composed of stars of spectral types F0 and G0, which orbit each other every 0.7473 days.[3]

RV Corvi
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Corvus
Right ascension  12h 37m 40.71385s[1]
Declination −19° 34′ 40.0503″[1]
Apparent magnitude (V) 8.6 - 9.16 [2]
Characteristics
Evolutionary stage Beta Lyrae variable
Spectral type F0+G0[3]
Astrometry
Radial velocity (Rv)30.0 ± 2 km/s
Proper motion (μ) RA: -29.94 ± 0.79 mas/yr
Dec.: 11.66 ± 0.54 mas/yr
Parallax (π)4.97 ± 0.81[4] mas
Distanceapprox. 700 ly
(approx. 200 pc)
Details
Other designations
RV Corvi, HD 109796, HIP 61620, BD−18° 3431
Database references
SIMBADdata

References
  1. "RV Crv". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 July 2015.
  2. Watson, Christopher (4 January 2010). "RV Corvi". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 21 July 2015.
  3. Malkov, O. Yu.; Oblak, E.; Snegireva, E. A.; Torra, J. (2006). "A catalogue of eclipsing variables". Astronomy and Astrophysics. 446 (2): 785–89. Bibcode:2006A&A...446..785M. doi:10.1051/0004-6361:20053137.
  4. van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics. 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.