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]
| 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 | |
| Database references | |
| SIMBAD | data |
References
edit- ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
- ^ a b c d e 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.
- ^ a b c d VSX (4 January 2010). "R Canum Venaticorum". AAVSO Website. American Association of Variable Star Observers. Retrieved 26 June 2014.
- ^ a b 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.
- ^ 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.
- ^ a b 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.
- ^ a b 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.
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