Gliese 69
Star in the constellation Cassiopeia
From Wikipedia, the free encyclopedia
Gliese 69 is a star located in the constellation of Cassiopeia. It has an apparent magnitude of 8.40.[2] Parallax measurements by Gaia put it at a distance of 44.09 light-years (13.6 parsecs) away.[1]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 01h 43m 40.72397s[1] |
| Declination | +63° 49′ 24.2351″[1] |
| Apparent magnitude (V) | 8.40[2] |
| Characteristics | |
| Evolutionary stage | main sequence[1] |
| Spectral type | K5 Vbe[2] |
| U−B color index | +1.12[3] |
| B−V color index | +1.22[3] |
| Astrometry | |
| Radial velocity (Rv) | −50.827±0.0075[4] km/s |
| Proper motion (μ) | RA: −395.210±0.013[1] mas/yr Dec.: −582.833±0.018[1] mas/yr |
| Parallax (π) | 73.9769±0.0183 mas[1] |
| Distance | 44.09 ± 0.01 ly (13.518 ± 0.003 pc) |
| Details | |
| Mass | 0.624[5] M☉ |
| Radius | 0.59[5] R☉ |
| Surface gravity (log g) | 4.70[5] cgs |
| Temperature | 4312[6] K |
| Metallicity [Fe/H] | −0.39[6] dex |
| Age | 6.89 ± 4.70[6] Gyr |
| Other designations | |
| BD+63° 229, GJ 69, HD 10436, HIP 8070, SAO 11943, LHS 1291.[7] | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Gliese 69 is a K-type main-sequence star that is smaller and less massive than the Sun.[5] It glows with an effective temperature of 4,312 K.[6] It is around 6.9 billion years old,[6] significantly older than the Sun. Gliese 69 is also known by its designations HD 10436 and LHS 1291.[7]
Planetary System
In 2019 one candidate planet been detected by the radial velocity method.[8]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b (unconfirmed) | 8.3+3.7 −3.2 M🜨 |
0.043±0.004 | 3.84237+0.00085 −0.00054 |
0.03+0.20 −0.03 |
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