LHS 1478
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cassiopeia[1] |
| Right ascension | 02h 57m 18.25955s[2] |
| Declination | +76° 33′ 11.2535″[2] |
| Apparent magnitude (V) | 13.3[3] |
| Characteristics | |
| Evolutionary stage | main sequence[4] |
| Spectral type | M3V[5] |
| Astrometry | |
| Radial velocity (Rv) | +69.79±0.27[2] km/s |
| Proper motion (μ) | RA: +690.920 mas/yr[2] Dec.: −399.894 mas/yr[2] |
| Parallax (π) | 54.9036±0.0177 mas[2] |
| Distance | 59.41 ± 0.02 ly (18.214 ± 0.006 pc) |
| Absolute magnitude (MV) | +12.1[4] |
| Details[5] | |
| Mass | 0.236±0.012 M☉ |
| Radius | 0.246±0.008 R☉ |
| Luminosity | 0.00715±0.00012 L☉ |
| Surface gravity (log g) | 4.87±0.06 cgs |
| Temperature | 3381±54 K |
| Metallicity [Fe/H] | −0.13±0.19 dex |
| Rotation | ~6.4 d |
| Rotational velocity (v sin i) | <2 km/s |
| Other designations | |
| G 245-61, LHS 1478, LP 14-53, NLTT 9256, TOI-1640, TIC 396562848[6] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
LHS 1478 (also known as TOI-1640) is a M3V-type main sequence star located 59.4 light-years from Earth in the constellation of Cassiopeia.[7] It has a mass of 0.24 solar masses and a radius of 0.25 solar radii. It has an effective temperature of 3381 Kelvin. The star is fairly inactive with no major flaring activity.[5][8]
