Gliese 293
Star in the constellation Volans
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Gliese 293 (or WD 0752-676, or LHS 34, or L 97-12) is a nearby white dwarf star, located 26.64 light-years away in the constellation Volans. It is the nearest star in this constellation and also the only one within 10 parsecs.[9]: 84
  Gliese 293 Location of Gliese 293 in the constellation Volans | |
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| Constellation | Volans[1] |
| Right ascension | 07h 53m 08.1439s[2] |
| Declination | −67° 47′ 31.382″[2] |
| Apparent magnitude (V) | 13.96[3] |
| Characteristics | |
| Evolutionary stage | white dwarf[4] |
| Spectral type | DC8.8,[4] or DC10.3[5] |
| Apparent magnitude (B) | 14.75[6] |
| Apparent magnitude (RKC) | 13.58[3] |
| Apparent magnitude (IKC) | 13.20[3] |
| Apparent magnitude (J) | 12.726±0.023[7] |
| Apparent magnitude (H) | 12.476±0.026[7] |
| Apparent magnitude (KS) | 12.362±0.024[7] |
| Astrometry | |
| Proper motion (μ) | RA: 1,467.123 mas/yr[2] Dec.: −1,489.721 mas/yr[2] |
| Parallax (π) | 122.4130±0.0114 mas[2] |
| Distance | 26.644 ± 0.002 ly (8.1691 ± 0.0008 pc) |
| Absolute magnitude (MV) | 14.47±0.04[3] |
| Details | |
| Mass | 0.59±0.01[3] M☉ |
| Radius | 0.0128[3][note 1] R☉ |
| Surface gravity (log g) | 8.00±0.02[3] cgs |
| Temperature | 5,700±90[3] K |
| Age | 2.65±0.10[3][note 2] Gyr |
| Other designations | |
| GJ 293, EGGR 56, L 97-12, LAWD 26, LFT 555, LHS 34, LTT 2981, PLX 1882, WD 0752-676, 2MASS J07530814-6747314[8] | |
| Database references | |
| SIMBAD | data |
Distance
Gliese 293 is the 12th-nearest known white dwarf.[10] A trigonometric parallax of Gliese 293 was included in the YPC (Yale Parallax Catalog), and subsequently it was measured more precisely in CTIOPI (Cerro Tololo Inter-American Observatory (CTIO) Parallax Investigation) 0.9 m telescope program, and by Gaia.
Physical parameters
The mass of Gliese 293 is 0.59±0.01 Solar masses,[3] and its surface gravity is 108.00±0.02 cm/s2,[3] or approximately 102,000 times Earth's, corresponding to a radius of 8,887 kilometres (5,522 miles), or 139% of Earth's.
Gliese 293 has a temperature of 5,700±90 K,[3] almost like the Sun, and a cooling age, i.e. age as a degenerate star (not including its lifetime as a main-sequence star and a giant star) of 2.65±0.10 Gyr[3] It has a white appearance due to similar temperature to Sun.