GJ 3293
GJ 3293 (sometimes Gliese 3293) is a star in the constellation of Eridanus, that is orbited by four planets, two of which (GJ 3293b & GJ 3293d) are located within the star's habitable zone. It is located at the celestial coordinates: Right Ascension 04h 28m 35.71911s, Declination −25° 10′ 09.2979″. With an apparent visual magnitude of 11.96, this star is too faint to be seen with the naked eye. It can be viewed with a telescope having an aperture of at least 4 in (10 cm). The estimated distance to GJ 3293 is 65.9 light-years (20.2 parsecs), based on its stellar parallax. GJ 3293 is significantly smaller and cooler than the Sun.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 04h 28m 35.71911s |
| Declination | −25° 10′ 09.2979″ |
| Apparent magnitude (V) | 11.96 |
| Characteristics | |
| Spectral type | M2.5 |
| Astrometry | |
| Radial velocity (Rv) | 13.116 ± 0.0024 km/s |
| Proper motion (μ) | RA: −81.375 mas/yr Dec.: −485.454 mas/yr |
| Parallax (π) | 49.4868 ± 0.0227 mas |
| Distance | 65.91 ± 0.03 ly (20.207 ± 0.009 pc) |
| Absolute magnitude (MV) | 10.66 |
| Details | |
| Mass | 0.420 M☉ |
| Radius | 0.40 ± 0.03 R☉ |
| Luminosity | 0.022 L☉ |
| Temperature | 3466 ± 49 K |
| Metallicity [Fe/H] | 0.02 ± 0.09 dex |
| Rotational velocity (v sin i) | −25.9 ± 6.6 km/s |
| Other designations | |
GJ 3293, LHS 1672, 2MASS J04283571-2510088, Gaia DR2 4893118771316702720 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
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