HD 64307

HD 64307
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 08h 00m 11.7385s[1]
Declination +73° 55′ 04.5036″[1]
Apparent magnitude (V) 5.35±0.01[2]
Characteristics
Evolutionary stage red giant branch[3]
Spectral type K3 III[4]
U−B color index +1.64[5]
B−V color index +1.43[5]
Astrometry
Radial velocity (Rv)33.54±0.19[6] km/s
Proper motion (μ) RA: −8.194 mas/yr[1]
Dec.: −37.514 mas/yr[1]
Parallax (π)4.7407 ± 0.0741 mas[1]
Distance690 ± 10 ly
(211 ± 3 pc)
Absolute magnitude (MV)−1.77[7]
Details
Mass1.19[8] M☉
Radius49.9[9] R☉
Luminosity (bolometric)892[10] L☉
Surface gravity (log g)1.18[8] cgs
Temperature4,264±122[11] K
Metallicity [Fe/H]−0.1[12] dex
Rotational velocity (v sin i)<2[13] km/s
Other designations
AG+74°195, BD+74°338, FK5 300, GC 10745, HD 64307, HIP 39117, HR 3075, SAO 6378
Database references
SIMBADdata

HD 64307, also known as HR 3075, is a solitary,[14] orange hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.35,[2] allowing it to be faintly seen with the naked eye. Based on parallax measurements from the Gaia spacecraft, The object is estimated to be 690 light years[1] distant. It appears to be receding from the Sun, having a heliocentric radial velocity of 34 km/s.[6]

HD 64307 is an evolved star with a stellar classification of K3 III.[4] Gaia DR3 stellar evolution models place it on the red giant branch.[3] It has a mass comparable to the Sun[8] but due to its evolved state, it has an enlarged radius of 49.9 R☉. It shines with a bolometric luminosity of 892 L☉ from its photosphere at an effective temperature of 4,264 K.[11] HD 64307 has an iron abundance 80% that of the Sun, and is also lithium enriched.[12] Like most giant stars, the object spins slowly, having a projected rotational velocity lower than 2 km/s.[13]

  1. ^ a b c d e Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Roman1952 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Rybka1969 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Famaey2005 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Kervella2021 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference McDonald2012 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference Brown1989 was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference deMed1999 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Eggelton2008 was invoked but never defined (see the help page).