R Virginis

R Virginis
Observation data; Epoch J2000 Equinox J2000
Constellation	Virgo
Right ascension	12h 38m 29.9338s[1]
Declination	+06° 59′ 19.0256″[1]
Apparent magnitude (V)	6.1 - 12.1[2]
Characteristics
Spectral type	M3.5-7e[3]
U−B color index	1.22[4]
B−V color index	1.56[4]
Variable type	Mira[2]
Astrometry
Radial velocity (Rv)	−26.60[5] km/s
Proper motion (μ)	RA: −32.283±0.248[1] mas/yr ; Dec.: 4.483±0.186[1] mas/yr
Parallax (π)	1.8884 ± 0.0946[1] mas
Distance	1,730 ± 90 ly ; (530 ± 30 pc)
Details
Radius	88[1] R☉
Luminosity	839[1] L☉
Temperature	3,320[1] 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
SIMBAD	data

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.[2] Its variable nature was discovered by Karl Ludwig Harding in 1809.[6]

References

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.
VSX (4 January 2010). "R Virginis". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.
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.
Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". Vizier Online Data Catalog. Bibcode:2002yCat.2237....0D.
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.
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.

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

[Gaia_DR2-1] 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.

[AAVSO-2] VSX (4 January 2010). "R Virginis". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.

[keenan-3] 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.

[ubv-4] Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". Vizier Online Data Catalog. Bibcode:2002yCat.2237....0D.

[pulkovo-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.

[Zsoldos1994-6] 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.