| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canes Venatici |
| Right ascension | 12h44m 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] |
| Distance | 57.26 ± 0.03 ly (17.557 ± 0.010 pc) |
| Absolute magnitude (MV) | 4.76[5] |
| Details | |
| Mass | 0.87+0.04 −0.03[6] M☉ |
| Radius | 0.98±0.02[7] R☉ |
| Luminosity | 1.104±0.002[7] L☉ |
| Surface gravity (log g) | 4.29[2] cgs |
| Temperature | 5,968+58 −41[7] K |
| Metallicity [Fe/H] | –0.53[2] dex |
| Rotation | 13 days[5] |
| Rotational velocity (v sin i) | 8.11[8] km/s |
| Age | 6.3[2] Gyr |
| Other designations | |
10 CVn, BD+40°2570, GJ 484, HD 110897, HIP 62207, HR 4845, SAO 63177[9] | |
| Database references | |
| SIMBAD | data |
10 Canum Venaticorum is the Flamsteed designation for an ordinary star in the northern constellationofCanes 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]
Anexcess 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]
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