Astronomy:S Virginis
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Short description: Variable star in the constellation Virgo
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Virgo |
| Right ascension | 13h 33m 00.1103s[2] |
| Declination | −07° 11′ 41.0387″[2] |
| Apparent magnitude (V) | 6.68[3] |
| Characteristics | |
| Spectral type | M6-7e[3] |
| U−B color index | 0.91[3] |
| B−V color index | 1.28[3] |
| Variable type | Mira[4] |
| Astrometry | |
| Radial velocity (Rv) | 9.60[3] km/s |
| Proper motion (μ) | RA: −16.813±0.680[2] mas/yr Dec.: 3.010±0.537[2] mas/yr |
| Parallax (π) | 1.3709 ± 0.3737[2] mas |
| Distance | approx. 2,400 ly (approx. 700 pc) |
| Absolute magnitude (MV) | −3.55 |
| Other designations | |
| Database references | |
| SIMBAD | data |
S Virginis is a Mira-type variable star in the constellation Virgo. Located approximately 700 parsecs (2,300 ly) distant,[2] it varies between magnitudes 6.3 and 13.2 over a period of approximately 375 days.[4]
References
- ↑ "Download Data". AAVSO. https://www.aavso.org/data-download.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 3.2 3.3 3.4 "S Virginis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=S+Vir&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id.
- ↑ 4.0 4.1 VSX (4 January 2010). "S Virginis". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=37810.
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