64 Aurigae

64 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 07h 18m 02.21420s[1]
Declination +40° 53′ 00.2248″[1]
Apparent magnitude (V) 5.87[2]
Characteristics
Evolutionary stage main sequence[3]
Spectral type A5 Vn[4]
B−V color index 0.181±0.005
Astrometry
Radial velocity (Rv)−10.0±4.3[2] km/s
Proper motion (μ) RA: −12.784[1] mas/yr
Dec.: +12.065[1] mas/yr
Parallax (π)10.4466 ± 0.1116 mas[1]
Distance312 ± 3 ly
(96 ± 1 pc)
Absolute magnitude (MV)1.22[2]
Details
Mass1.67[5] M☉
Luminosity27.03[2] L☉
Surface gravity (log g)3.88[5] cgs
Temperature8,014±272[5] K
Rotational velocity (v sin i)212[3] km/s
Age291[5] Myr
Other designations
64 Aur, BD+41°1630, FK5 276, HD 56221, HIP 35341, HR 2753, SAO 41679[6]
Database references
SIMBADdata

64 Aurigae is a single[7] star located 312[1] light years away from the Sun in the northern constellation of Auriga.[6] It is visible to the naked eye as a dim, white-hued star with an apparent magnitude of 5.87.[2] The star is moving closer to the Earth with a heliocentric radial velocity of −10, and may come to within 167 light-years in around 5.3 million years.[2] It is a member of the Sirius supercluster.[8]

This object is an ordinary A-type main-sequence star with a stellar classification of 5 Vn,[4] where the 'n' notation is used to indicate "nebulous" lines in the spectrum caused by rapid rotation. It is 291[5] million years old with a projected rotational velocity of 212 km/s.[3] The star has 1.67[5] times the mass of the Sun and is radiating 27[2] times the Sun's luminosity from its photosphere at an effective temperature of 8,014 K.[5]

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 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 c Cite error: The named reference zorec2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference David2015 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Palous1986 was invoked but never defined (see the help page).