3 Monocerotis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
3 Monocerotis
Monoceros constellation map.svg
Red circle.svg

Location of 3 Monocerotis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Monoceros
Right ascension 06h 01m 50.42241s[1]
Declination −10° 35′ 52.5565″[1]
Apparent magnitude (V) 4.92[2]
Spectral type B5III[3]
U−B color index -0.58[4]
B−V color index -0.12[4]
Radial velocity (Rv) +39.00[5] km/s
Proper motion (μ) RA: -5.89[1] mas/yr
Dec.: +2.94[1] mas/yr
Parallax (π) 4.16 ± 0.55[1] mas
Distance approx. 800 ly
(approx. 240 pc)
Absolute magnitude (MV) -1.94[2]
Mass 5.85[6] M
Luminosity 1105[2] L
Temperature 15,000[6] K
Metallicity [Fe/H] 0.00[7] dex
Rotational velocity (v sin i) 45[8] km/s
Other designations
BD-10 1349, CCDM J06018-1036AB, GC 7631, HIP 28574, HR 2128, HD 40967, SAO 151037, WDS J06018-1036AB
Database references

3 Monocerotis is a class B5III[3] (blue giant) star in the constellation Monoceros. Its apparent magnitude is 4.92[2] and it is approximately 780 light years away based on parallax.[1]

In addition to the primary, which is itself a spectroscopic binary, there is one companion, B, with magnitude 7.96 and separation 1.9".[9]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  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: 443. Bibcode:2014JAVSO..42..443M. Vizier catalog entry
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ a b Hohle, M.M.; Neuhäuser, R.; Schutz, B.F. (2010). "Masses and luminosities of O- and B-type stars and red supergiants". Astronomische Nachrichten. 331 (4): 349. arXiv:1003.2335Freely accessible. Bibcode:2010AN....331..349H. doi:10.1002/asna.200911355.  Vizier catalog entry
  7. ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814Freely accessible. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.  Vizier catalog entry
  8. ^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590. 
  9. ^ 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