HD 125442

HD 125442
Observation data
Epoch J2000      Equinox J2000
Constellation Lupus
Right ascension 14h 20m 42.58071s[1]
Declination −45° 11′ 13.4190″[1]
Apparent magnitude (V) 4.78[2]
Characteristics
Spectral type F0 IV[3]
B−V color index 0.310±0.003[2]
Astrometry
Radial velocity (Rv)+0.0±3.7[4] km/s
Proper motion (μ) RA: +37.33[5] mas/yr
Dec.: −72.81[5] mas/yr
Parallax (π)22.1448 ± 0.3265 mas[1]
Distance147 ± 2 ly
(45.2 ± 0.7 pc)
Absolute magnitude (MV)1.49[6]
Details
Mass1.49[7] M☉
Luminosity19.24[2] L☉
Surface gravity (log g)3.95±0.14[7] cgs
Temperature7,344±250[7] K
Rotational velocity (v sin i)148±10[6] km/s
Age614[7] Myr
Other designations
CD−44° 9236, HD 125442, HIP 70104, HR 5364, SAO 224843[8]
Database references
SIMBADdata

HD 125442 is a single[9] star in the southern constellation of Lupus. Its apparent visual magnitude is 4.78,[2] which can be seen with the naked eye. The distance to HD 125442, as determined from its annual parallax shift of 22.1 mas,[1] is 147 light years.

This is an F-type subgiant star with a stellar classification of F0 IV,[3] having, at the age of 614[7] million years, used up the hydrogen at its core and begun the process of evolving into a giant star. It has 1.49[7] times the mass of the Sun and is radiating 19[2] times the Sun's luminosity from its photosphere at an effective temperature of 7,344 K.[7] The star displays a high rate of spin with a projected rotational velocity of 148 km/s.[6]

  1. ^ a b c d Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Anderson2012 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 Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference vonEiff2012 was invoked but never defined (see the help page).
  7. ^ a b c d e f g Cite error: The named reference David2015 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).