41 Aurigae

41 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga[1]
41 Aur A
Right ascension 06h 11m 36.59170s[2]
Declination +48° 42′ 39.5571″[2]
Apparent magnitude (V) 6.15[3]
41 Aur B
Right ascension 06h 11m 36.55276s[4]
Declination +48° 42′ 47.0365″[4]
Apparent magnitude (V) 6.84[3]
Characteristics
41 Aur A
Evolutionary stage Main sequence[2]
Spectral type A2Va+[5]
B−V color index 0.06[3]
41 Aur B
Evolutionary stage main sequence[6]
Spectral type kA5hA5mF0(IV-V)[5]
B−V color index 0.15[3]
Astrometry
41 Aur A
Radial velocity (Rv)31[7] km/s
Proper motion (μ) RA: +14.994[2] mas/yr
Dec.: −55.704[2] mas/yr
Parallax (π)10.6629±0.0539 mas[2]
Distance306 ± 2 ly
(93.8 ± 0.5 pc)
41 Aur B
Radial velocity (Rv)29[7] km/s
Proper motion (μ) RA: +19.171[4] mas/yr
Dec.: −52.460[4] mas/yr
Parallax (π)10.5899±0.0969 mas[4]
Distance308 ± 3 ly
(94.4 ± 0.9 pc)
Details
41 Aur A
Mass2.31[8] M☉
Radius2.08[8] R☉
Luminosity27[8] L☉
Surface gravity (log g)4.17[8] cgs
Temperature9,114[8] K
Rotational velocity (v sin i)138[9] km/s
41 Aur B
Mass1.76[8] M☉
Radius1.91[8] R☉
Luminosity11[8] L☉
Surface gravity (log g)4.13[8] cgs
Temperature7,586[8] K
Rotational velocity (v sin i)133[6] 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[10]
41 Aur B: GC 7851, HD 42126, HR 2175, SAO 40924[11]
Database references
SIMBAD41 Aur A
41 Aur B

41 Aurigae is a binary star[12] 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.[12] This system is moving further from the Earth with a heliocentric radial velocity of 31 km/s.[1] It is a probable member of the Hyades Supercluster.[13]

As of 2012, the pair had an angular separation of 7.39″ along a position angle of 357.7°.[14] The primary component is an A-type main-sequence star with a stellar classification of A2Va+[5] and a visual magnitude of 6.15.[3] The magnitude 6.84[3] secondary companion is a possible Am star[15] with a stellar classification of kA5hA5mF0(IV-V),[5] showing the calcium K line and hydrogen lines of an A5 star and the metal lines of an F0 star.

References

  1. ^ a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b c d e f Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; et al. (March 2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy and Astrophysics, 355: L27–L30, Bibcode:2000A&A...355L..27H, doi:10.1888/0333750888/2862.
  4. ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  5. ^ a b c d Gray, R. O.; Garrison, R. F. (December 1987), "The Early A-Type Stars: Refined MK Classification, Confrontation with Stroemgren Photometry, and the Effects of Rotation", Astrophysical Journal Supplement, 65: 581, Bibcode:1987ApJS...65..581G, doi:10.1086/191237.
  6. ^ a b Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.
  7. ^ a b Evans, D. S. (June 20–24, 1966). "The Revision of the General Catalogue of Radial Velocities". In Batten, Alan Henry; Heard, John Frederick (eds.). Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30. University of Toronto: International Astronomical Union. Bibcode:1967IAUS...30...57E.
  8. ^ a b c d e f g h i j Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
  9. ^ Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298.
  10. ^ "41 Aur A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-23.
  11. ^ "41 Aur B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-23.
  12. ^ a b Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  13. ^ Eggen, O. J. (June 1985), "A systematic search for members of the Hyades Supercluster. IV - The metallic-line stars and ultrashort-period Cepheids", Astronomical Journal, 90: 1046−1059, Bibcode:1985AJ.....90.1046E, doi:10.1086/113812.
  14. ^ Mason, Brian D.; et al. (May 2012), "Speckle Interferometry at the U.S. Naval Observatory. XVIII", The Astronomical Journal, 143 (5): 6, Bibcode:2012AJ....143..124M, doi:10.1088/0004-6256/143/5/124, 124.
  15. ^ Renson, P.; Manfroid, J. (2009), "Catalogue of Ap, HgMn and Am stars", Astronomy and Astrophysics, 498 (3): 961–966, Bibcode:2009A&A...498..961R, doi:10.1051/0004-6361/200810788.
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