GJ 1002
Red dwarf star in the constellation Cetus / From Wikipedia, the free encyclopedia
GJ 1002 (or Gliese 1002) is a nearby red dwarf star, located 15.8 light-years (4.8 parsecs) away from the Solar System in the constellation of Cetus. The star has 12% the mass and 14% the radius of the Sun, and a temperature of 3,024 K (2,751 °C; 4,984 °F). It hosts a system of two known exoplanets.[4]
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cetus[2] |
Right ascension | 00h 06m 43.19732s[3] |
Declination | −07° 32′ 17.0191″[3] |
Apparent magnitude (V) | 13.837±0.003[4] |
Characteristics | |
Evolutionary stage | Main sequence |
Spectral type | M5.5V[4] |
Apparent magnitude (V) | 13.837±0.003[4] |
Apparent magnitude (G) | 11.774±0.003[3] |
Apparent magnitude (J) | 8.323±0.019[4] |
Apparent magnitude (H) | 7.792±0.034[5] |
Apparent magnitude (K) | 7.439±0.021[5] |
Astrometry | |
Radial velocity (Rv) | −40.46±0.30[3] km/s |
Proper motion (μ) | RA: −811.566 mas/yr[3] Dec.: −1893.251 mas/yr[3] |
Parallax (π) | 206.3500 ± 0.0474 mas[3] |
Distance | 15.806 ± 0.004 ly (4.846 ± 0.001 pc) |
Details[4] | |
Mass | 0.120±0.010 M☉ |
Radius | 0.137±0.005 R☉ |
Luminosity (bolometric) | 0.001406±0.000019 L☉ |
Surface gravity (log g) | 5.10±0.06 cgs |
Temperature | 3024±52 K |
Metallicity [Fe/H] | −0.25±0.19 dex |
Rotation | 126±15 d |
Other designations | |
Database references | |
SIMBAD | data |
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