41 Aurigae

41 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
41 Aur A
Right ascension 06h 11m 36.59156s[1]
Declination +48° 42′ 39.5603″[1]
Apparent magnitude (V) 6.15[2]
41 Aur B
Right ascension 06h 11m 36.55589s[3]
Declination +48° 42′ 47.0528″[3]
Apparent magnitude (V) 6.84[2]
Characteristics
41 Aur A
Evolutionary stage Main sequence
Spectral type A2Va+[4]
B−V color index 0.06[2]
41 Aur B
Evolutionary stage Am star
Spectral type kA5hA5mF0(IV-V)[4]
B−V color index 0.15[2]
Astrometry
41 Aur A
Radial velocity (Rv)31[5] km/s
Proper motion (μ) RA: +15.085[1] mas/yr
Dec.: −55.907[1] mas/yr
Parallax (π)10.5367 ± 0.0689 mas[1]
Distance310 ± 2 ly
(94.9 ± 0.6 pc)
41 Aur B
Radial velocity (Rv)29[5] km/s
Proper motion (μ) RA: +17.183[3] mas/yr
Dec.: −53.536[3] mas/yr
Parallax (π)10.3314 ± 0.0711 mas[3]
Distance316 ± 2 ly
(96.8 ± 0.7 pc)
Details
41 Aur A
Temperature9,000+278
−596[1] K
Rotational velocity (v sin i)138[6] km/s
41 Aur B
Mass1.99±0.10[7] M☉
Radius1.78+0.12
−0.18[3] R☉
Luminosity11.2±0.1[3] L☉
Temperature7,925+421
−260[3] K
Rotational velocity (v sin i)133[7] km/s
Other designations
41 Aur, BD+48°1352, HIP 29388, ADS 4773, WDS J06116+4843
41 Aur A: GC 7853, HD 42127, HR 2176, SAO 40925[8]
41 Aur B: GC 7851, HD 42126, HR 2175, SAO 40924[9]
Database references
SIMBADdata

41 Aurigae is a binary star[10] system located around 310–316 light years away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, white-hued star with a combined apparent visual magnitude of 5.83.[10] This system is moving further from the Earth with a heliocentric radial velocity of 31 km/s.[11] It is a probable member of the Hyades Supercluster.[12]

As of 2012, the pair had an angular separation of 7.39″ along a position angle of 357.7°.[13] The primary component is an A-type main-sequence star with a stellar classification of A2Va+[4] and a visual magnitude of 6.15.[2] The magnitude 6.84[2] secondary companion is a possible Am star[14] with a stellar classification of kA5hA5mF0(IV-V),[4] showing the calcium K line and hydrogen lines of an A5 star and the metal lines of an F0 star.

  1. ^ a b c d e f Cite error: The named reference GaiaDR2A was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Høg2000 was invoked but never defined (see the help page).
  3. ^ a b c d e f g h Cite error: The named reference GaiaDR2B was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Gray1987 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Evans1966 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Royer2007 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBADA was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBADB was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Eggen1985 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Mason2012 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Renson2009 was invoked but never defined (see the help page).