11 Canis Minoris
Star in the constellation Canis Minor
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11 Canis Minoris is a single[8] star in the equatorial constellation of Canis Minor,[7] located around 313 light years away from the Sun.[1] It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.25.[2] This object is moving away from the Earth with a heliocentric radial velocity of +28 km/s,[4] having come to within 157 light-years some 2.35 million years ago.[2]
 | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Canis Minor |
| Right ascension | 07h 46m 16.20081s[1] |
| Declination | +10° 46â² 05.7055â³[1] |
| Apparent magnitude (V) | 5.25[2] |
| Characteristics | |
| Spectral type | A1Vnn[3] |
| BâV color index | 0.018±0.008[2] |
| Astrometry | |
| Radial velocity (Rv) | +28.0±4.2[4] km/s |
| Proper motion (μ) | RA: â29.902[1] mas/yr Dec.: â25.275[1] mas/yr |
| Parallax (Ï) | 10.4262±0.2007 mas[1] |
| Distance | 313 ± 6 ly (96 ± 2 pc) |
| Absolute magnitude (MV) | 0.42[2] |
| Details | |
| Mass | 2.23[5] Mâ |
| Radius | 2.5[6] Râ |
| Luminosity | 65.26[2] Lâ |
| Surface gravity (log g) | 3.60[5] cgs |
| Temperature | 9,972±339[5] K |
| Age | 149[5] Myr |
| Other designations | |
| 11 CMi, NSV 3724, BD+11°1670, FK5 1201, GC 10463, HD 62832, HIP 37921, HR 3008, SAO 97224[7] | |
| Database references | |
| SIMBAD | data |
This is an A-type main-sequence star with a stellar classification of A1Vnn,[3] where the 'n' notation indicates (very) "nebulous" lines due to rapid rotation. However, Gray and Garrison (1987) found a class of A0.5 IVnn,[9] which would instead match an evolving subgiant star. It is a suspected variable star of unknown type.[10] This object is 149[5] million years old with 2.23[5] times the mass of the Sun and about 2.5[6] times the Sun's radius. It is radiating 65[2] times the Sun's luminosity from its photosphere at an effective temperature of 9,972 K.[5]