HD 192310
HD 192310 (also known as 5 G. Capricorni or Gliese 785) is a star in the southern constellation of Capricornus. It is located in the solar neighborhood at a distance of 28.7 light-years (8.8 parsecs), and is within the range of luminosity needed to be viewed from the Earth with the unaided eye. (According to the Bortle scale, it can be viewed from dark suburban skies.) HD 192310 is suspected of being a variable star, but this is unconfirmed.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Capricornus |
| Right ascension | 20h 15m 17.39138s |
| Declination | −27° 01′ 58.7116″ |
| Apparent magnitude (V) | 5.73 |
| Characteristics | |
| Spectral type | K2+ V |
| U−B color index | 0.64 |
| B−V color index | 0.88 |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | −54.41±0.13 km/s |
| Proper motion (μ) | RA: 1242.763 mas/yr Dec.: −181.175 mas/yr |
| Parallax (π) | 113.4872 ± 0.0516 mas |
| Distance | 28.74 ± 0.01 ly (8.812 ± 0.004 pc) |
| Absolute magnitude (MV) | 6.0 |
| Details | |
| Mass | 0.78 ± 0.04 M☉ |
| Radius | 0.79–0.85 R☉ |
| Luminosity | 0.385 ± 0.007 L☉ |
| Surface gravity (log g) | 4.38 ± 0.19 cgs |
| Temperature | 5069 ± 49 K |
| Metallicity [Fe/H] | -0.01 ± 0.05 dex |
| Rotation | 47.7 ± 4.9 days |
| Rotational velocity (v sin i) | <3 km/s |
| Age | 7.5–8.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.