V429 Geminorum
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Gemini |
| Right ascension | 07h 23m 43.58935s |
| Declination | +20° 24′ 58.6506″ |
| Apparent magnitude (V) | 9.86 - 10.080 |
| Characteristics | |
| Spectral type | K5Ve |
| Variable type | BY Dra |
| Astrometry | |
| Radial velocity (Rv) | 7.56±0.28 km/s |
| Proper motion (μ) | RA: −65.642 mas/yr Dec.: −230.692 mas/yr |
| Parallax (π) | 36.0856±0.0186 mas |
| Distance | 90.38 ± 0.05 ly (27.71 ± 0.01 pc) |
| Details | |
| Mass | 0.63 M☉ |
| Radius | 0.71 R☉ |
| Luminosity | 0.17 L☉ |
| Surface gravity (log g) | 4.53 cgs |
| Temperature | 4410 K |
| Metallicity | 0.30 |
| Rotation | 2.76±0.04 d |
| Rotational velocity (v sin i) | 10.03 km/s |
| Age | 35-80 Myr |
| Other designations | |
| V429 Gem, BD+20°1790, TYC 1355-214-1, USNO-B1.0 1104-00142035, 2MASS J07234358+2024588, 1SWASP J072343.59+202458.6 | |
| Database references | |
| SIMBAD | data |
V429 Geminorum (BD+20°1790) is a young orange dwarf star in the constellation Gemini, located 90 light years away from the Sun. It is a BY Draconis variable, a cool dwarf which varies rapidly in brightness as it rotates.