HD 111915

Last updated
e Centauri
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Centaurus
Right ascension 12h 53m 06.91s [1]
Declination −48° 56 35.9 [1]
Apparent magnitude  (V)+4.33 [2]
Characteristics
Spectral type K3-4III [3]
U−B color index +1.58
B−V color index +1.344±0.068 [2]
Astrometry
Radial velocity (Rv)−2.4±1.6 [2]  km/s
Proper motion (μ)RA: -79.19 ± 0.15 [1]   mas/yr
Dec.: -24.26 ± 0.13 [1]   mas/yr
Parallax (π)11.08 ± 0.19  mas [1]
Distance 294 ± 5  ly
(90 ± 2  pc)
Absolute magnitude  (MV)−0.45 [2]
Details
Radius 30.62+1.48
−5.77
[4]   R
Luminosity 277±13 [4]   L
Temperature 4,258+468
−100
[4]   K
Other designations
e Cen, CD−48°7753, FK5  3024, GC  17473, HD  111915, HIP  62867, HR  4888, SAO  223731 [5]
Database references
SIMBAD data

HD 111915 is a single [6] star in the southern constellation of Centaurus. It has the Bayer designation e Centauri, while HD 111915 is the star's identifier in the Henry Draper Catalogue . This is an aging giant star with a stellar classification of K3-4III. [3] It is faintly visible to the naked eye with an apparent visual magnitude of +4.33. [2] The distance to this star is approximately 294  light years based on parallax. [1]

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<span class="mw-page-title-main">Mu Phoenicis</span> Star in the constellation Phoenix

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<span class="mw-page-title-main">Eta Mensae</span> Star in the constellation Mensa

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References

  1. 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv: 0708.1752 . Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID   18759600. Vizier catalog entry
  2. 1 2 3 4 5 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. S2CID   119257644.
  3. 1 2 Houk, N. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 2, Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
  4. 1 2 3 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics . 616. A1. arXiv: 1804.09365 . Bibcode: 2018A&A...616A...1G . doi: 10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR.
  5. "e Cen". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-01-28.
  6. 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.