36 Aurigae

36 Aurigae

The visual band light curve of 36 Aurigae, adapted from Adelman (2005)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 00m 58.56230s[2]
Declination +47° 54′ 06.9180″[2]
Apparent magnitude (V) 5.71[3]
Characteristics
Spectral type A1 Vp Si[4] or B9.5p Si,Fe[1]
B−V color index −0.007±0.004[3]
Variable type α2 CVn[5]
Astrometry
Radial velocity (Rv)+15.8±2.1[3] km/s
Proper motion (μ) RA: +4.186[2] mas/yr
Dec.: −20.368[2] mas/yr
Parallax (π)3.5882 ± 0.1266 mas[2]
Distance910 ± 30 ly
(279 ± 10 pc)
Absolute magnitude (MV)−1.97[3]
Details
Mass4.42±0.43[6] M☉
Luminosity724+348
−234[6] L☉
Temperature10,046+522
−496[6] K
Rotational velocity (v sin i)20[7] km/s
Other designations
36 Aur, V444 Aurigae, BD+47°1227, HD 40394, HIP 28499, HR 2101, SAO 40778, 2MASS J06005856+4754069[8]
Database references
SIMBADdata

36 Aurigae is a single[9] variable star located about 910[2] light years away from the Sun in the constellation Auriga. It has the variable star designation V444 Aurigae, while 36 Aurigae is the Flamsteed designation.[8] This object is visible to the naked eye as a dim, white-hued star with a baseline apparent visual magnitude of 5.71. It is moving further from the Earth with a heliocentric radial velocity of +16 km/s.[3]

This is a magnetic chemically peculiar star that has been given stellar classifications of A1 Vp Si[4] and B9.5p Si,Fe,[1] indicating it is a late B- or early A-type star showing peculiarities of silicon and iron in the spectrum. It is an Alpha2 Canum Venaticorum variable that ranges in visual magnitude from 5.70 down to 5.74 with a period of 14.368 days.[5] The star has 4.4[6] times the mass of the Sun and is radiating 724 times the Sun's luminosity from its photosphere at an effective temperature of 10,046 K.[6]

  1. ^ a b c Cite error: The named reference Adelman2005 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference abt1995 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Samus2017 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference Martin2017 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Abt2002 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).