YZ Canis Minoris
Location of YZ Canis Minoris in the constellation Canis Minor | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canis Minor |
| Right ascension | 07h 44m 40.17230s |
| Declination | +03° 33′ 08.8752″ |
| Apparent magnitude (V) | 11.15 |
| Characteristics | |
| Spectral type | M5 V |
| B−V color index | 1.61 |
| Astrometry | |
| Radial velocity (Rv) | +26.53±0.30 km/s |
| Proper motion (μ) | RA: −347.782 mas/yr Dec.: −445.702 mas/yr |
| Parallax (π) | 166.9769±0.0343 mas |
| Distance | 19.533 ± 0.004 ly (5.989 ± 0.001 pc) |
| Absolute magnitude (MV) | 12.32 |
| Details | |
| Mass | 0.36±0.02 M☉ |
| Radius | 0.37±0.01 R☉ |
| Luminosity | 1.116×10−2 L☉ |
| Surface gravity (log g) | 5.0 cgs |
| Temperature | 3,125±61 K |
| Metallicity [Fe/H] | −0.26±0.08 dex |
| Rotation | 2.8 days |
| Rotational velocity (v sin i) | 4.0 km/s |
| Age | 49 Myr |
| Other designations | |
| YZ CMI, BD+35°2496, GJ 285, HIP 37766, SAO 63793, G 50-4, G 112-46, LFT 547, LHS 1943, LSPM J0744+0333, LTT 12064, NLTT 18373, PLX 1827, PM 07421+0341, Ross 882, TYC 183-2190-1, GSC 00183-02190, IRAS 07420+0340, 2MASS J07444018+0333089 | |
| Database references | |
| SIMBAD | data |
YZ Canis Minoris is a red-hued star in the equatorial constellation of Canis Minor. With an apparent visual magnitude of 11.15, it is much too faint to be viewed with the naked eye. The distance to YZ CMi can be estimated from its annual parallax shift of 167 mas, yielding a value of 19.5 light years. Presently the star is moving further away with a heliocentric radial velocity of +26.5 km/s. It made its closest approach some 162,000 years ago when it made perihelion passage at a distance of 10.2 ly. YZ CMi is a potential member of the Beta Pictoris moving group.
This is a red dwarf star, or M-type main-sequence star, with a stellar classification of M5 V. It is a flare star, so called due to its stellar flares being more powerful than those of Earth's star, and is roughly three times the size of Jupiter. The radio emission from the star is in a 50 mHz bandwidth and is centered on 1464.9 mHz. The X-ray surface flux is 2.73×106 erg s−1 cm−2. It has a coronal temperature of 5.79 MK.