HD 107146

HD 107146

False colour image of HD 107146 taken by the Hubble Space Telescope, showing its circumstellar disc. The right side of the disc is brighter due to inclination of the disc to the line of sight and preferential forward scattering of the light from the star.
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Coma Berenices
Right ascension 12h 19m 06.50230s[1]
Declination 16° 32′ 53.8628″[1]
Apparent magnitude (V) 7.028[2]
Characteristics
Spectral type G2V[3]
U−B color index +0.073[2]
B−V color index +0.602[2]
Astrometry
Radial velocity (Rv)1.88[4] km/s
Proper motion (μ) RA: -174.684[5] mas/yr
Dec.: -149.0214[5] mas/yr
Parallax (π)36.4038 ± 0.0230 mas[5]
Distance89.59 ± 0.06 ly
(27.47 ± 0.02 pc)
Details
Mass1.09[6] M☉
Radius0.993±0.014[6] R☉
Luminosity1.1[7] L☉
Surface gravity (log g)4.56[8] cgs
Temperature5850[6] K
Metallicity [Fe/H]0.00[8] dex
Rotation3.50±1.35 days[6]
Age80–200 myr[9] years
Other designations
BD+17° 2462, NLTT 30317, SAO 100038, HD 107146, HIP 60074, 2MASS J12190650+1632541[3]
Database references
SIMBADdata

HD 107146 is a star in the constellation Coma Berenices that is located about 90 light-years (28 pc) from Earth.[9] The apparent magnitude of 7.028 makes this star too faint to be seen with the unaided eye.

The physical properties of this star are similar to the Sun, including the stellar classification G2V,[3] making this a solar analog.[10] The mass of this star is about 109% of the solar mass (M☉) and it has about 99% the radius of the Sun (R☉).[6] It is a young star with an age between 80 and 200 Myr.[9] The axis of rotation is estimated at 21+8
−9 degrees to the line of sight and it completes a rotation in a relatively brief 3.5 days.[6]

  1. ^ a b Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference aj88_853 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference aj133_6_2524 was invoked but never defined (see the help page).
  5. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  6. ^ a b c d e f Cite error: The named reference mnrasl413_1_L71 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference apj617_L147 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference apj738_1 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference apj604_414 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference apj690_L65 was invoked but never defined (see the help page).