HD 49878

"M Camelopardalis" redirects here. For Mycteroperca camelopardalis, see Mycteroperca tigris.
HD 49878
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 07h 00m 04.0372s[1]
Declination +76° 58′ 38.671″[1]
Apparent magnitude (V) +4.551[2]
Characteristics
Spectral type K4 III[3]
B−V color index 1.399[2]
Astrometry
Radial velocity (Rv)−29.47±0.19[4] km/s
Proper motion (μ) RA: 72.948(83) mas/yr[1]
Dec.: −13.442(109) mas/yr[1]
Parallax (π)17.0753 ± 0.1093 mas[1]
Distance191 ± 1 ly
(58.6 ± 0.4 pc)
Absolute magnitude (MV)0.80[5]
Details
Mass1.239±0.217[6] M☉
Radius18.68+0.34
−0.79[7] R☉
Luminosity94.2±1.5[7] L☉
Surface gravity (log g)2.11[2] cgs
Temperature4,160+91
−38[7] K
Metallicity [Fe/H]0.05[2] dex
Rotational velocity (v sin i)1.4[8] km/s
Age4.817±2.347[6] Gyr
Other designations
BD+77°266, FK5 260, GC 9073, HD 49878, HIP 33694, HR 2527, SAO 6022,[9] M Cam[citation needed]
Database references
SIMBADdata

HD 49878 (M Camelopardalis) is a single[10] star in the northern circumpolar constellation of Camelopardalis. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of +4.55.[2] The star is located at a distance of approximately 191 light years from the Sun, as determined from its parallax.[1] It is drifting closer with a radial velocity of −29.5 km/s.[4] The star has been listed as a candidate member of the Wolf 630 moving group, but is most likely a field star.[11]

This is an aging giant star with a stellar classification of K4 III,[3] having exhausted the supply of hydrogen at its core and expanded to 19 times the Sun's radius.[7] It is roughly 5 billion years old with 1.24 times the mass of the Sun.[6] The star is radiating 94 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,160 K.[7] It is spinning slowly with a projected rotational velocity of 1.4 km/s.[8]

  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 c d e Cite error: The named reference Soubiran2010 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Eggen1962 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Dollinger2008 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference DeMedeiros2000 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference McDonald1983 was invoked but never defined (see the help page).