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R Virginis is a Mira variable in the constellation Virgo. Located approximately 530 parsecs (1,700 ly) distant, it varies between magnitudes 6.1 and 12.1 over a period of approximately 146 days.[3] Its variable nature was discovered by Karl Ludwig Harding in 1809.[7]

R Virginis

The visual band light curve of R Virginis, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Virgo
Right ascension 12h 38m 29.9338s[2]
Declination +06° 59′ 19.0256″[2]
Apparent magnitude (V) 6.1 - 12.1[3]
Characteristics
Spectral type M3.5-7e[4]
U−B color index 1.22[5]
B−V color index 1.56[5]
Variable type Mira[3]
Astrometry
Radial velocity (Rv)−26.60[6] km/s
Proper motion (μ) RA: −32.283±0.248[2] mas/yr
Dec.: 4.483±0.186[2] mas/yr
Parallax (π)1.8884 ± 0.0946 mas[2]
Distance1,730 ± 90 ly
(530 ± 30 pc)
Details
Radius88[2] R☉
Luminosity839[2] L☉
Temperature3,320[2] K
Other designations
R Virginis, TYC 295-2-1, AG+07° 1658, HD 109914, BD+07°2561, DO 3264, HIP 61667, GC 17212, HR 4808, RAFGL 4157, SAO 119509
Database references
SIMBADdata

References


  1. "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. VSX (4 January 2010). "R Virginis". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.
  4. Keenan, Philip C.; Garrison, Robert F.; Deutsch, Armin J. (1974). "Revised Catalog of Spectra of Mira Variables of Types ME and Se". The Astrophysical Journal Supplement Series. 28: 271. Bibcode:1974ApJS...28..271K. doi:10.1086/190318.
  5. Ducati, J. R. (2002). "VizieR On-line Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". VizieR On-line Data Catalog. Bibcode:2002yCat.2237....0D.
  6. 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.
  7. Zsoldos, E. (1994). "Three Early Variable Star Catalogues". Journal for the History of Astronomy. 25 (2): 92–98. Bibcode:1994JHA....25...92Z. doi:10.1177/002182869402500202. S2CID 117099222.


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R Virginis (R Vir)[1] es el nombre de una estrella variable en la constelación de Virgo. Fue descubierta por el astrónomo Karl Ludwig Harding en 1809.[2]


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