| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 08h 55m 07.62173s[1] |
| Declination | +01° 32′ 47.4151″[1] |
| Apparent magnitude (V) | 9.997[2] |
| Characteristics | |
| Evolutionary stage | main-sequence star |
| Spectral type | M0V[2] |
| B−V color index | 1.30[2] |
| Astrometry | |
| Radial velocity (Rv) | −3.731±0.0015[3] km/s |
| Proper motion (μ) | RA: 44.944 mas/yr[1] Dec.: −1045.876 mas/yr[1] |
| Parallax (π) | 48.7404 ± 0.0184 mas[1] |
| Distance | 66.92 ± 0.03 ly (20.517 ± 0.008 pc) |
| Details[2] | |
| 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[4] |
| Other designations | |
| Database references | |
| SIMBAD | data |
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.[5] 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.[4]
Multiplicity surveys did not detect any stellar companions as of 2016.[6]
GaiaDR3 was invoked but never defined (see the help page).Pinamonti2023 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Kuker2018 was invoked but never defined (see the help page).Woolf2020 was invoked but never defined (see the help page).