R Canum Venaticorum

R Canum Venaticorum is a Mira variable star in the constellation Canes Venatici. It ranges between magnitudes 6.5 and 12.9 over a period of approximately 329 days.^[3]

R Canum Venaticorum

The visual band light curve of R Canum Venaticorum, from AAVSO data[1]
Observation data Epoch J2000      Equinox J2000
Constellation	Canes Venatici
Right ascension	13h 48m 57.0416s[2]
Declination	+39° 32′ 33.174″[2]
Apparent magnitude (V)	6.5 - 12.9[3]
Characteristics
Spectral type	M5.5e-M9e[3]
U−B color index	+0.41[4]
B−V color index	+1.22[4]
Variable type	Mira[3]
Astrometry
Radial velocity (Rv)	−6.80[5] km/s
Proper motion (μ)	RA: −1.115[2] mas/yr Dec.: −5.148[2] mas/yr
Parallax (π)	2.1711 ± 0.1262 mas[2]
Distance	1,500 ± 90 ly (460 ± 30 pc)
Details
Mass	2.26[6] M☉
Radius	664[6] R☉
Luminosity	29,251[7] L☉
Temperature	3,108[7] K
Other designations
R CVn, SAO 63763, GSC 03027-00252, BD+40°2694, HD 120499, DO 14814, GC 18671, HIP 67410, HR 5199
Database references
SIMBAD	data

References

1. "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
2. Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
3. VSX (4 January 2010). "R Canum Venaticorum". AAVSO Website. American Association of Variable Star Observers. Retrieved 26 June 2014.
4. Myers, J. R.; Sande, C. B.; Miller, A. C.; Warren, W. H.; Tracewell, D. A. (2015). "VizieR Online Data Catalog: SKY2000 Master Catalog, Version 5 (Myers+ 2006)". Vizier Online Data Catalog. Bibcode:2015yCat.5145....0M.
5. Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
6. Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs". Astronomy and Astrophysics. 657: 657. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. S2CID 237605138.
7. Chandler, Colin Orion; et al. (2016). "The Catalog of Earth-Like Exoplanet Survey Targets (CELESTA): A Database of Habitable Zones Around Nearby Stars". The Astronomical Journal. 151 (3): 59. arXiv:1510.05666. Bibcode:2016AJ....151...59C. doi:10.3847/0004-6256/151/3/59. S2CID 119246448.