Gliese 555
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Libra |
| Right ascension | 14h 34m 16.81183s[1] |
| Declination | −12° 31′ 10.3965″[1] |
| Apparent magnitude (V) | 11.317 |
| Characteristics | |
| Spectral type | M4.0V |
| Variable type | BY Dra type |
| Astrometry | |
| Radial velocity (Rv) | -1.45 ± 0.1 km/s |
| Proper motion (μ) | RA: −355.138±0.053[2] mas/yr Dec.: 593.040±0.043[2] mas/yr |
| Parallax (π) | 159.9225 ± 0.0546[2] mas |
| Distance | 20.395 ± 0.007 ly (6.253 ± 0.002 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gliese 555 (HN Librae) is a red dwarf star of spectral type M4.0V, located in constellation Libra at 20.2 light-years from Earth.[13]
Planetary system[]
In 2019 one planet been detected by radial velocity among other 118 planets around M dwarf stars.[14]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| (unconfirmed) | 30.1 +16.3 −14.6 M |