10 Canum Venaticorum

10 Canum Venaticorum
Observation data
Epoch J2000      Equinox J2000
Constellation Canes Venatici
Right ascension 12h 44m 59.405s[1]
Declination +39° 16′ 44.10″[1]
Apparent magnitude (V) 5.95[2]
Characteristics
Evolutionary stage Main sequence
Spectral type G0 V[2]
U−B color index –0.03[3]
B−V color index +0.55[3]
Astrometry
Radial velocity (Rv)+80.3[4] km/s
Proper motion (μ) RA: –359.699 mas/yr[1]
Dec.: +139.016 mas/yr[1]
Parallax (π)56.9588 ± 0.0323 mas[1]
Distance57.26 ± 0.03 ly
(17.557 ± 0.010 pc)
Absolute magnitude (MV)4.76[5]
Details
Mass0.87+0.04
−0.03[6] M☉
Radius0.98±0.02[7] R☉
Luminosity1.104±0.002[7] L☉
Surface gravity (log g)4.29[2] cgs
Temperature5,968+58
−41[7] K
Metallicity [Fe/H]–0.53[2] dex
Rotation13 days[5]
Rotational velocity (v sin i)8.11[8] km/s
Age6.3[2] Gyr
Other designations
10 CVn, BD+40°2570, GJ 484, HD 110897, HIP 62207, HR 4845, SAO 63177[9]
Database references
SIMBADdata

10 Canum Venaticorum is an ordinary star in the northern constellation of Canes Venatici. It has an apparent visual magnitude of 5.95,[2] which, according to the Bortle scale, can be faintly seen with the naked eye from suburban locations. Based upon an annual parallax shift of 0.057 arcseconds,[1] this system is 57.26 light-years (17.557 parsecs) from Sun. It is drifting further away with a radial velocity of +80 km/s.[4]

The stellar classification of 10 Canum Venaticorum is G0 V,[2] indicating that it is a G-type main sequence star that is fusing hydrogen into helium at its core to generate energy. The NStars project found a similar class of F9V Fe−0.3,[10] indicating a mild underabundance of iron. It is older than the Sun, with an estimated age of six billion years.[2] The star has around 98%[7] of the Sun's radius and 87%[6] of the solar mass. It rotates about the axis an average of once every 13 days,[5] with a projected rotational velocity along the equator of 8 km/s.[8] The abundance of elements other than hydrogen and helium is lower than in the Sun.[2] The effective temperature of the stellar atmosphere is 5,968 K,[7] giving it the yellow hue of a G-type star.[11]

An excess of infrared emission at a wavelength of 70 μm suggests the presence of a debris disk.[12] The best fit disk model suggest a broad dust annulus with a peak brightness at a radius of 53.7 AU, that is inclined by an angle of 56° to the line of sight from the Earth along a position angle of 111.2°.[5]

  1. ^ a b c d e Cite error: The named reference GaiaEDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i Cite error: The named reference aaa541 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Nordström2004 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference marshall2014 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference apj756_1_46 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference MartínezArnáiz2010 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Trilling2008 was invoked but never defined (see the help page).