G 196-3
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ursa Major |
| Right ascension | 10h 04m 21.4627s |
| Declination | 50° 23′ 13.386″ |
| Apparent magnitude (V) | 11.7 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | M3.0V |
| U−B color index | +1.67 |
| B−V color index | +1.16 |
| Astrometry | |
| Radial velocity (Rv) | 11.7 km/s |
| Proper motion (μ) | RA: −141.079 mas/yr Dec.: −202.336 mas/yr |
| Parallax (π) | 45.8541±0.0188 mas |
| Distance | 71.13 ± 0.03 ly (21.808 ± 0.009 pc) |
| Details | |
| Mass | 0.525 M☉ |
| Radius | 0.52 R☉ |
| Luminosity | 0.00431 L☉ |
| Surface gravity (log g) | 5.0 cgs |
| Temperature | 3,485 K |
| Rotation | 1.315 days |
| Rotational velocity (v sin i) | 16.6 km/s |
| Age | 38 Myr |
| Other designations | |
| TYC 3440-13-1, NLTT 23293 | |
| Database references | |
| SIMBAD | data |
G 196-3 is a young low-mass M dwarf type star which is about 100 million years old. The star is located within the Ursa Major constellation about 71.1 light years away from the Earth. During observations by Instituto de Astrofísica de Canarias in Tenerife, Spain in 1998, a substellar-mass object was discovered to orbit approximately 300 astronomical units (AU) from the star. It was detected using direct imaging.