6 Canum Venaticorum

6 Canum Venaticorum
Observation data
Epoch J2000      Equinox J2000
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 mas[1]
Distance246 ± 4 ly
(75 ± 1 pc)
Absolute magnitude (MV)0.65±0.044[6]
Details
Mass2.04[2] M☉
Radius9[5] R☉
Luminosity67.6[2] L☉
Surface gravity (log g)2.8[5] cgs
Temperature4,938±21[2] K
Metallicity [Fe/H]−0.11[5] dex
Rotational velocity (v sin i)0.0[5] km/s
Age2.05[2] Gyr
Other designations
6 CVn, BD+39° 2521, FK5 461, HD 108225, HIP 60646, HR 4728, SAO 63000[7]
Database references
SIMBADdata

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]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i j k Cite error: The named reference Luck2015 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Alves2000 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference perkins1989 was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference Massarotti2008 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference park2013 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference koen2002 was invoked but never defined (see the help page).