HD 10647

This article is about q1 Eridani. For other stars with this Bayer designation, see q Eridani.
HD 10647
Location of HD 10647 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Eridanus
Right ascension 01h 42m 29.3145s[1]
Declination −53° 44′ 26.991″[1]
Apparent magnitude (V) 5.52[2]
Characteristics
Spectral type F9V[3]
B−V color index 0.551[2]
Astrometry
Radial velocity (Rv)27.64(12)[1] km/s
Proper motion (μ) RA: 166.041(34) mas/yr[1]
Dec.: −105.496(46) mas/yr[1]
Parallax (π)57.6409 ± 0.0453 mas[1]
Distance56.58 ± 0.04 ly
(17.35 ± 0.01 pc)
Absolute magnitude (MV)4.32
Details
Mass1.11 ± 0.02[3] M☉
Radius1.10 ± 0.02[3] R☉
Luminosity1.41[3] L☉
Temperature6,218 ± 20[3] K
Metallicity [Fe/H]0.00 ± 0.01[3] dex
Rotation10 ± 3[3]
Rotational velocity (v sin i)4.9[3] km/s
Age1.4 ± 0.9[3] Gyr
Other designations
q1 Eridani, 5 G. Eridani, CPD−54° 365, GJ 3109, HIP 7978, HR 506, SAO 232501[4]
Database references
SIMBADdata

HD 10647 (q1 Eridani) is a 6th-magnitude yellow-white dwarf star, 57 light-years away in the constellation of Eridanus. The star is visible to the unaided eye under very dark skies. It is slightly hotter and more luminous than the Sun, and at 1.75 billion years old, it is also younger. An extrasolar planet was discovered orbiting this star in 2003.

  1. ^ a b c d e Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference apj598_1_636 was invoked but never defined (see the help page).
  3. ^ a b c d e f g h i Cite error: The named reference Marmier2013 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).