HD 116243

This article is about m Centauri. Not to be confused with M Centauri.
m Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 13h 24m 00.48075s[1]
Declination −64° 32′ 08.4097″[1]
Apparent magnitude (V) +4.52[2]
Characteristics
Spectral type G6IIb[3]
B−V color index 0.822±0.030[2]
Astrometry
Radial velocity (Rv)+13.26±0.13[1] km/s
Proper motion (μ) RA: 29.793[1] mas/yr
Dec.: −21.465[1] mas/yr
Parallax (π)13.3749 ± 0.1716 mas[1]
Distance244 ± 3 ly
(74.8 ± 1.0 pc)
Absolute magnitude (MV)0.01[2]
Details
Mass1.4[4] M☉
Radius11.6+0.2
−2.6[1] R☉
Luminosity88.8±1.3[1] L☉
Surface gravity (log g)2.97[5] cgs
Temperature5,197+704
−51[1] K
Metallicity [Fe/H]−0.13[5] dex
Rotational velocity (v sin i)4.3[6] km/s
Other designations
m Cen, CPD−63°2732, FK5 2985, GC 18107, HD 116243, HIP 65387, HR 5041, SAO 252293[7]
Database references
SIMBADdata

HD 116243 is a single[8] star in the southern constellation of Centaurus. It has the Bayer designation m Centauri, while HD 116243 is the identifier from the Henry Draper catalogue.[7] This star has a yellow hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.52.[2] It is located at a distance of approximately 244 light years from the Sun based on parallax,[1] and it has an absolute magnitude of 0.01.[2] It is drifting further away with a radial velocity of +13.3 km/s.[1]

This object is an aging bright giant star with a stellar classification of G6IIb[3] With the supply of hydrogen at its core exhausted, it has expanded to 12 times the radius of the Sun. The star is radiating 89 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,197 K.[1]

  1. ^ a b c d e f g h i j k l 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 Keenan1989 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference starhorse was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Alves2015 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference pasquini2000 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).