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Luyten's Star
From Wikipedia, the free encyclopedia
| Observation data Equinox J2000 |
|
|---|---|
| Constellation | Monoceros |
| Right ascension | 07h 27m 24.5s |
| Declination | +05° 13' 32" |
| Apparent magnitude (V) | 9.85 |
| Characteristics | |
| Spectral type | M3.5V |
| U-B color index | 1.15 |
| B-V color index | 1.57 |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | +18.2 km/s |
| Proper motion (μ) | RA: 571.27 mas/yr Dec.: -3694.25 mas/yr |
| Parallax (π) | 263.76 ± 1.25 mas |
| Distance | 12.37 ± 0.06 ly (3.79 ± 0.02 pc) |
| Absolute magnitude (MV) | 11.96 |
| Other designations | |
Luyten's Star (GJ 273 Recons) is a red dwarf at a distance of around 12.36 light-years. It is approximately a quarter the mass of the Sun, a tenth of its diameter and a tiny fraction of its luminosity (0.0004 solar luminosities). It is named after Willem Jacob Luyten, who determined its proper motion. The star is in the constellation of Monoceros.
It has been proposed that Luyten's Star has a substellar companion object, but this has not been proven.