63 Aurigae

63 Aurigae

63 Aurigae in optical light
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 07h 11m 39.32608s[1]
Declination +39° 19′ 13.9844″[1]
Apparent magnitude (V) 4.91[2]
Characteristics
Evolutionary stage giant
Spectral type K4 III[3]
B−V color index 1.451±0.005[2]
Astrometry
Radial velocity (Rv)−27.89±0.02[2] km/s
Proper motion (μ) RA: +45.655[1] mas/yr
Dec.: +2.791[1] mas/yr
Parallax (π)8.2489 ± 0.1974 mas[1]
Distance395 ± 9 ly
(121 ± 3 pc)
Absolute magnitude (MV)−0.95[2]
Details
Radius36.88+0.87
−1.51[1] R☉
Luminosity335.37±9.25[1] L☉
Surface gravity (log g)1.88[4] cgs
Temperature4067.5+85.8
−47.5[1] K
Metallicity [Fe/H]−0.17±0.06[2] dex
Other designations
63 Aur, BD+39°1882, FK5 274, HD 54716, HIP 34752, HR 2696, SAO 59866[5]
Database references
SIMBADdata

63 Aurigae is a single[6] star located around 395[1] light years away from the Sun in the northern constellation of Auriga.[5] It is visible to the naked eye as a faint, orange-hued star with an apparent magnitude of 4.91.[2] It is moving closer to the Earth with a heliocentric radial velocity of −28 km/s.[2]

This is an evolved giant star with a stellar classification of K4 III.[3] After exhausting the hydrogen at its core, the star has expanded to 37[1] times the radius of the Sun. It is radiating 335[1] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,068 K.[1]

It was also known to be part of a much bigger constellation named Telescopium Herschelii before it was unrecognized by the International Astronomical Union (IAU).

  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 f g 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 McWilliam1990 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).