| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Indus[1] |
| Right ascension | 22h 41m 58.11718s[2] |
| Declination | −69° 10′ 08.3207″[2] |
| Apparent magnitude (V) | 15.26±0.03[3] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M4.5-M5[3] |
| Apparent magnitude (V) | 15.26±0.03[3] |
| Apparent magnitude (G) | 13.365±0.003[2] |
| Apparent magnitude (J) | 10.046±0.023[3] |
| Apparent magnitude (H) | 9.477±0.023[3] |
| Apparent magnitude (K) | 9.145±0.023[3] |
| Astrometry | |
| Radial velocity (Rv) | −9.90±0.76[2] km/s |
| Proper motion (μ) | RA: 334.419 mas/yr[2] Dec.: −726.986 mas/yr[2] |
| Parallax (π) | 67.2123 ± 0.0187 mas[2] |
| Distance | 48.53 ± 0.01 ly (14.878 ± 0.004 pc) |
| Absolute magnitude (MV) | 14.39±0.02[3] |
| Details[3] | |
| Mass | 0.151±0.014 M☉ |
| Radius | 0.189±0.006 R☉ |
| Luminosity (bolometric) | 0.00272±0.0004 L☉ |
| Surface gravity (log g) | 5.06±0.01 cgs |
| Temperature | 3036±77 K |
| Rotation | 128±24 d |
| Age | 7.8±1.6[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
LHS 3844, formally named Batsũ̀, is a red dwarf star located 48.5 light-years (14.9 parsecs) away from the Solar System in the constellation of Indus. The star has about 15% the mass and 19% the radius of the Sun.[3] It is a relatively inactive red dwarf with a slow rotation period of about 128 days, though UV flares have been observed.[6] LHS 3844 is orbited by one known exoplanet.
GaiaDR3 was invoked but never defined (see the help page).Vanderspek2019 was invoked but never defined (see the help page).Kane2020 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).Diamond-Lowe2021 was invoked but never defined (see the help page).