| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus[1] |
| Right ascension | 04h 16m 31.16176s[2] |
| Declination | −28° 18′ 52.9543″[2] |
| Apparent magnitude (V) | 18.0±0.2[3] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M6V[4] |
| Apparent magnitude (V) | 18.0±0.2[3] |
| Apparent magnitude (G) | 15.791±0.003[2] |
| Apparent magnitude (J) | 12.258±0.023[3] |
| Apparent magnitude (H) | 11.692±0.025[3] |
| Apparent magnitude (K) | 11.344±0.023[3] |
| Astrometry | |
| Radial velocity (Rv) | 28.84±2.84[2] km/s |
| Proper motion (μ) | RA: 218.569 mas/yr[2] Dec.: −251.145 mas/yr[2] |
| Parallax (π) | 30.9326 ± 0.0418 mas[2] |
| Distance | 105.4 ± 0.1 ly (32.33 ± 0.04 pc) |
| Absolute magnitude (MV) | 15.45±0.2[note 1] |
| Details[3] | |
| Mass | 0.118±0.002 M☉ |
| Radius | 0.1532+0.0048 −0.0024 R☉ |
| Luminosity (bolometric) | 0.001438±0.000037 L☉ |
| Surface gravity (log g) | 5.139+0.013 −0.028 cgs |
| Temperature | 2871+32 −45 K |
| Metallicity [Fe/H] | −0.028±0.089 dex |
| Age | 7.2+2.2 −3.1 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
LP 890-9, also known as SPECULOOS-2 or TOI-4306, is a high proper motion red dwarf star located 105 light-years (32 pc) away from the Solar System in the constellation of Eridanus. The star has 12% the mass and 15% the radius of the Sun, and a temperature of 2,871 K (2,598 °C; 4,708 °F). It is extremely faint and, with an apparent magnitude of 18, is the faintest star with exoplanets discovered by the Transiting Exoplanet Survey Satellite.[6]
GaiaDR3 was invoked but never defined (see the help page).Delrez2022 was invoked but never defined (see the help page).Kaltenegger2022 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).
Cite error: There are <ref group=note> tags on this page, but the references will not show without a {{reflist|group=note}} template (see the help page).