R Virginis
From Wikipedia, the free encyclopedia
|
|
|
| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Virgo |
| Right ascension | 12h 38m 29.9349s |
| Declination | +06° 59' 19.028"' |
| Apparent magnitude (V) | 7.77 |
| Characteristics | |
| Spectral type | M4.5III |
| U-B color index | ? |
| B-V color index | ? |
| Variable type | Variable Star of Mira Cet type |
| Astrometry | |
| Radial velocity (Rv) | -25.7 km/s |
| Proper motion (μ) | RA: -31.40 4.21 mas/yr Dec.: 4.21 mas/yr |
| Parallax (π) | 1.4 ± 1.41 mas |
| Distance | approx. 2000 ly (approx. 700 pc) |
| Absolute magnitude (MV) | 9.06 |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
R Virginis, Variable Star of Mira Cet type.
[edit] References
 |
This star-related article is a stub. You can help Wikipedia by expanding it. |
