Mu Horologii

Mu Horologii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Horologium
Right ascension 03h 03m 36.81891s[1]
Declination −59° 44′ 15.9925″[1]
Apparent magnitude (V) 5.11[2]
Characteristics
Spectral type F0 III/IV[3]
B−V color index +0.34[2]
Astrometry
Radial velocity (Rv)17.3±2.8[4] km/s
Proper motion (μ) RA: −73.29[1] mas/yr
Dec.: −64.06[1] mas/yr
Parallax (π)23.04 ± 0.16 mas[1]
Distance141.6 ± 1.0 ly
(43.4 ± 0.3 pc)
Absolute magnitude (MV)1.99[5]
Details
Mass1.53+0.08
−0.01[6] M☉
Luminosity13[7] L☉
Surface gravity (log g)3.80±0.02[6] cgs
Temperature6,898±63[6] K
Metallicity [Fe/H]−0.42±0.05[6] dex
Rotational velocity (v sin i)79.2±4.0[5] km/s
Age1.95+0.20
−0.14[6] Gyr
Other designations
μ Hor, CPD−60° 236, HD 19319, HIP 14240, HR 934, SAO 232981[8]
Database references
SIMBADdata

Mu Horologii (μ Horologii) is a solitary,[9] yellow-white hued star in the southern constellation of Horologium. It is faintly visible to the naked eye with an apparent visual magnitude of 5.11.[2] Based upon an annual parallax shift of 23.04 mas as seen from Earth,[1] it is located about 141.6 light years from the Sun.

This is an evolving F-type star with a stellar classification of F0 III/IV,[3] showing mixed traits of a subgiant and a giant star. It is around two billion years old with a projected rotational velocity of 79.2 km/s.[5] The star has 1.5[6] times the mass of the Sun and is radiating 13[7] times the solar luminosity from its photosphere at an effective temperature of 6,898 K.[6]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  6. ^ a b c d e f g Cite error: The named reference Ramirez2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Mcdonald2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).