HD 41534
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(Redirected from 72 Columbae)
| 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] |
| Characteristics | |
| Spectral type | B2.5V[1] |
| U−B color index | −0.82[2] |
| B−V color index | −0.19[2] |
| Astrometry | |
| 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] |
| Details | |
| Radius | 3.90[4] R☉ |
| Rotational velocity (v sin i) | 128[2] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
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/sec. It is thought to have been ejected from the OB association Sco OB 1 approximately 14 million years ago.[6]
[edit] References
- ^ 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.
- ^ 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.
- ^ From apparent magnitude and parallax.
- ^ 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.
- ^ HD 41534 is Gould's 72nd of Columba in his Uranometria Argentina. (Gould, B. A., (2009) Uranometria Argentina, (Reprinted and updated by Pilcher, F.)[1]) Some astronomers wrongly called it as simply "72 Col".
- ^ 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, Bibcode: 1961BAN....15..301V.
