HD 103079

HD 103079
Location of HD 103079 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Musca[1]
Right ascension 11h 51m 51.22424s[2]
Declination −65° 12′ 21.2764″[2]
Apparent magnitude (V) 4.89[1]
Characteristics
Evolutionary stage main sequence[2]
Spectral type B4V[3]
U−B color index −0.53[4]
B−V color index −0.11[4]
Astrometry
Radial velocity (Rv)+20.60[5] km/s
Proper motion (μ) RA: −34.879[2] mas/yr
Dec.: −6.538[2] mas/yr
Parallax (π)8.6793±0.1283 mas[2]
Distance376 ± 6 ly
(115 ± 2 pc)
Absolute magnitude (MV)−0.33[1]
Details
Mass5.0[6] M☉
Luminosity251[1] L☉
Temperature20,560[7] K
Metallicity [Fe/H]0.00[8] dex
Rotational velocity (v sin i)57[3] km/s
Other designations
CPD−64°1724, CCDM J11519-6512AB, GC 16241, GSC 08981-04411, HIP 57851, HR 4549, HD 103079, SAO 251617, WDS J11519-6512AB
Database references
SIMBADdata

HD 103079 is a class B4V (blue main-sequence) star in the constellation Musca. Its apparent magnitude is 4.89 and it is approximately 376 light years away from Earth based on parallax. It is a member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association, a group of predominantly hot blue-white stars that share a common origin and proper motion across the galaxy.[9]

It has one reported companion with a magnitude of 7.41 and separation 1.549".[10][11]

References

  1. ^ a b c d 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 Hoffleit, D; Warren, W. H (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  4. ^ a b Mallama, A (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
  5. ^ Evans, D. S (1967). "The Revision of the General Catalogue of Radial Velocities". Determination of Radial Velocities and Their Applications. 30: 57. Bibcode:1967IAUS...30...57E.
  6. ^ Tetzlaff, N; Neuhäuser, R; Hohle, M. M (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873. Vizier catalog entry
  7. ^ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497. S2CID 119258214.
  8. ^ Gontcharov, G. A (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. S2CID 118345778. Vizier catalog entry
  9. ^ De Zeeuw, P. T.; Hoogerwerf, R.; De Bruijne, J. H. J.; Brown, A. G. A.; Blaauw, A. (1999). "A Hipparcos Census of Nearby OB Associations". Astronomical Journal. 117 (1): 354–399. arXiv:astro-ph/9809227. Bibcode:1999AJ....117..354D. doi:10.1086/300682. S2CID 16098861.
  10. ^ Eggleton, P. P; Tokovinin, A. A (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976. Vizier catalog entry
  11. ^ Mason, Brian D; Wycoff, Gary L; Hartkopf, William I; Douglass, Geoffrey G; Worley, Charles E (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
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