Sigma Virginis
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 13h 17m 36.28327s[1] |
| Declination | +05° 28′ 11.5221″[1] |
| Apparent magnitude (V) | 4.86[2] |
| Characteristics | |
| Spectral type | M1 III[3] |
| U−B color index | +1.86[2] |
| B−V color index | +1.62[2] |
| Variable type | suspected[4] |
| Absolute magnitude (MV) | −1.80[6] |
| Details | |
| Radius | 98[7] R☉ |
| Luminosity | 1,610[7] L☉ |
| Surface gravity (log g) | 0.42[7] cgs |
| Temperature | 3,690[7] K |
| Database references | |
| SIMBAD | data |
Sigma Virginis (σ Vir, σ Virginis) is a
apparent visual magnitude of 4.86.[2] Based upon parallax measurements, the distance to this star is roughly 680 light-years
.
This is an evolved
luminosity of the Sun.[7]
References
- ^ S2CID 18759600.
- ^ Bibcode:1986EgUBV........0M.
- ^ S2CID 15358380.
- ^ Bibcode:1981NVS...C......0K.
- S2CID 17804304.
- S2CID 119257644.
- ^ S2CID 73594365.
- ^ "sig Vir", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2016-09-16.
- ^ "/ftp/cats/more/HIP/cdroms/cats", Centre de Données astronomiques de Strasbourg, Strasbourg astronomical Data Center, retrieved 15 October 2022.