Gliese 328
Gliese 328, also known as BD+02 2098, is a M-type main-sequence star located 66.9 light-years (20.5 parsecs) away in the constellation Hydra. Its surface temperature is 3989 K. Gliese 328 is depleted in heavy elements compared to the Sun, with a metallicity Fe/H index of −0.13. The age of the star is unknown. Gliese 328 exhibits an activity cycle similar to that of the Sun, with a period around 2000 d.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 08h 55m 07.62173s |
| Declination | +01° 32′ 47.4151″ |
| Apparent magnitude (V) | 9.997 |
| Characteristics | |
| Evolutionary stage | main-sequence star |
| Spectral type | M0V |
| B−V color index | 1.30 |
| Astrometry | |
| Radial velocity (Rv) | −3.731±0.0015 km/s |
| Proper motion (μ) | RA: 44.944 mas/yr Dec.: −1045.876 mas/yr |
| Parallax (π) | 48.7404 ± 0.0184 mas |
| Distance | 66.92 ± 0.03 ly (20.517 ± 0.008 pc) |
| Details | |
| Mass | 0.65±0.08 M☉ |
| Radius | 0.63±0.07 R☉ |
| Luminosity | 0.08 L☉ |
| Surface gravity (log g) | 4.64±0.07 cgs |
| Temperature | 3897±71 K |
| Metallicity [Fe/H] | −0.06±0.09 dex |
| Rotation | 33.6 days |
| Other designations | |
| Database references | |
| SIMBAD | data |
Multiplicity surveys did not detect any stellar companions as of 2016.
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