HD 41534

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HD 41534
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Columba
Right ascension 06h 04m 20.2657s[1]
Declination −32° 10′ 20.750″[1]
Apparent magnitude (V) 5.631[1]
Spectral type B2.5V[1]
U−B color index −0.82[2]
B−V color index −0.19[2]
Radial velocity (Rv) 93 ± 5[1] km/s
Proper motion (μ) RA: −15.62[1] mas/yr
Dec.: 120.75[1] mas/yr
Parallax (π) 3.01 ± 0.57[1] mas
Distance approx. 1,100 ly
(approx. 330 pc)
Absolute magnitude (MV) −2.0[3]
Radius 3.90[4] R
Rotational velocity (v sin i) 128[2] km/s
Other designations
72G. Col,[5] CCDM J06043-3210AB, CD−32 2743, CPD−32 1008, FK5 2464, GC 7708, HIP 28756, HR 2149, IDS 06006-3210 AB, PPM 282235, SAO 196459.[1]
Database references

HD 41534 is a B-type main sequence star in the constellation of Columba.[1] It has an apparent visual magnitude of approximately 5.631 and is approximately 1100 light-years from the Earth.[1] This star is a runaway star with an unusually high space velocity of around 190 km/s. It is thought to have been ejected from the OB association Sco OB 1 approximately 14 million years ago.[6]


  1. ^ a b c d e f g h i j k CCDM J06043-3210AB -- Double or multiple star, database entry, SIMBAD. Accessed on line September 21, 2009.
  2. ^ a b c HR 2149, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 21, 2009.
  3. ^ From apparent magnitude and parallax.
  4. ^ HD 41534, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line September 21, 2009.
  5. ^ HD 41534 is Gould's 72nd of Columba in his Uranometria Argentina. (Gould, B. A., (2009) Uranometria Argentina, (Reprinted and updated by Pilcher, F.)"Archived copy". Archived from the original on 2012-02-27. Retrieved 2010-07-16. ) Some astronomers wrongly called it as simply "72 Col".
  6. ^ 72 Columbae, a B3V run-away star from the association I Scorpii, T. S. van Albada, Bulletin of the Astronomical Institutes of the Netherlands 15 (May 1961), pp. 301–305, Bibcode1961BAN....15..301V.