Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation (pronunciation) |
Monoceros |
Right ascension | 06h 29m 13.1917s[1] |
Declination | +10° 56′ 02.009″[1] |
Apparent magnitude (V) | 8.13[1] |
Characteristics | |
Spectral type | G8-K0[2] |
B−V color index | 0.85[1] |
V−R color index | 0.5[1] |
R−I color index | 0.4[1] |
Astrometry | |
Proper motion (μ) | RA: 206.14[1] mas/yr Dec.: −62.69[1] mas/yr |
Parallax (π) | 27.67 ± 1.29[1] mas |
Distance | 103 ly (55 pc) |
Absolute magnitude (MV) | 5.3[3] |
Details | |
Mass | 0.83 ± 0.05[2] M☉ |
Surface gravity (log g) | 4.32 ± 0.21[2] |
Luminosity (bolometric, Lbol) | 34 L☉ |
Temperature | 5312 ± 68[2] K |
Metallicity | [Fe/H] = 0.29 ± 0.07[2] |
Other designations | |
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation (pronunciation) |
Canis Major |
Right ascension | 06h 45m 08.9173s[4][5] |
Declination | −16° 42′ 58.017″[4][5] |
Apparent magnitude (V) | −1.47 (A)[4] / 8.30 (B)[6] |
Characteristics | |
Spectral type | A1V (A)[4] / DA2 (B)[6] |
U−B color index | −0.05 (A)[7] / −1.04 (B)[6] |
B−V color index | 0.01 (A)[4] / −0.03 (B)[6] |
Astrometry | |
Radial velocity (Rv) | −7.6[4] km/s |
Proper motion (μ) | RA: −546.05[4][5] mas/yr Dec.: −1223.14[4][5] mas/yr |
Parallax (π) | 379.21 ± 1.58[4] mas |
Distance | 8.60 ± 0.04 ly (2.64 ± 0.01 pc) |
Absolute magnitude (MV) | 1.42 (A)[8] / 11.18 (B)[6] |
Details | |
Mass | 2.02[9] (A) / 0.978[9] (B) M☉ |
Radius | 1.711[9] (A) / 0.0084 ± 3%[10] (B) R☉ |
Luminosity (bolometric, Lbol) | 25.4[9] (A) / 0.026[11] (B) L☉ |
Temperature | 9,940[12] (A) / 25,200[9] (B) K |
Metallicity | [Fe/H] =0.50[13] (A) |
Rotation | 16 km/s[14] (A) |
Age | 2-3 × 108[9] years |
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