Observation data Equinox J2000.0]] (ICRS) | |
---|---|
Constellation | Canes Venatici |
Right ascension | 12h 25m 50.93786s[1] |
Declination | +39° 01′ 07.0195″[1] |
Apparent magnitude (V) | +5.01[2] |
Characteristics | |
Evolutionary stage | horizontal branch[3] |
Spectral type | G9 III[4] |
B−V color index | 0.94[2] |
Astrometry | |
Radial velocity (Rv) | −4.17±0.33[5] km/s |
Proper motion (μ) | RA: −77.335[1] mas/yr Dec.: −33.782[1] mas/yr |
Parallax (π) | 13.2764 ± 0.2086[1] mas |
Distance | 246 ± 4 ly (75 ± 1 pc) |
Absolute magnitude (MV) | 0.65±0.044[6] |
Details | |
Mass | 2.04[2] M☉ |
Radius | 9[5] R☉ |
Luminosity | 67.6[2] L☉ |
Surface gravity (log g) | 2.8[5] cgs |
Temperature | 4,938±21[2] K |
Metallicity [Fe/H] | −0.11[5] dex |
Rotational velocity (v sin i) | 0.0[5] km/s |
Age | 2.05[2] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
6 Canum Venaticorum is a single[8] star in the northern constellation Canes Venatici, located 246 light years from the Sun.[1] It is visible to the naked eye as a faint yellow-hued star with an apparent visual magnitude of +5.01.[2] The star is moving closer to the Earth with a heliocentric radial velocity of −4.2 km/s.[5]
This is an evolved G-type giant star with a stellar classification of G9 III,[4] which means it has exhausted the hydrogen supply at its core and expanded. It is a red clump giant, indicating that it is on the horizontal branch and is generating energy through the helium fusion at its core.[3] Data from the Hipparcos mission provided evidence of microvariability with an amplitude of 0.0056 in magnitude and a frequency of 0.00636 per day, or one cycle every 157 days.[9]
6 Canum Venaticorum is about two[2] billion years old with double[2] the mass of the Sun. It has expanded to 9[5] times the Sun's radius and is radiating 68[2] times the Sun's luminosity from its photosphere at an effective temperature of 4,938 K.[2]
Original source: https://en.wikipedia.org/wiki/6 Canum Venaticorum.
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