HD 125288

Last updated
HD 125288
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Centaurus
Right ascension 14h 20m 19.54267s [1]
Declination −56° 23′ 11.3838″ [1]
Apparent magnitude  (V)4.30 [2]
Characteristics
Evolutionary stage Supergiant [3]
Spectral type B5Ib/II [4] or B6Ib [5]
B−V color index 0.082±0.003 [2]
Astrometry
Radial velocity (Rv)4.2±2.7 [2]  km/s
Proper motion (μ)RA: −9.437  mas/yr [1]
Dec.: −7.543  mas/yr [1]
Parallax (π)2.2511 ± 0.1972  mas [1]
Distance 1,270±130  ly
(390±40  pc) [6]
Absolute magnitude  (MV)−3.56 [2]
Details [6]
Mass 9.3±0.3  M☉
Radius 21±2  R☉
Luminosity 12,600+3,200
−2,600  L☉
Surface gravity (log g)2.77±0.05  cgs
Temperature 13,700±300  K
Rotational velocity (v sin i)23±4 km/s
Age 28.84+3.52
−3.14  Myr
Other designations
v Cen, CPD−55°5984, FK5  529, GC  19318, HD  125288, HIP  70069, HR  5358, SAO  241641 [7]
Database references
SIMBAD data

HD 125288 is a single [8] star in the southern constellation of Centaurus. It has the Bayer designation v Centauri (lower case V); while HD 125288 is the star's identifier in the Henry Draper catalogue . The object has a blue-white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.30. [2] Based on spectroscopic measurements, it is located at a distance of approximately 1,270  light years from Earth. [6] This is a candidate runaway star that is moving to the west and falling back into the Galactic plane. [5] It has an absolute magnitude of −3.56. [2]

This massive B-type supergiant star [3] has a stellar classification of B5Ib/II [4] or B6Ib. [5] It is around 29 million years old and has 9 times the mass of the Sun. The star has expanded to 21 times the girth of the Sun and is spinning with a projected rotational velocity of 23 km/s. It is radiating 12,600 times the luminosity of the Sun from its photosphere at an effective temperature of 13,700 K. [6]

In 2016, an asterism including HD 125288 (SAO 241641) was unofficially identified in honor of David Bowie. [9] [10]

Related Research Articles

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<span class="mw-page-title-main">Iota Canis Majoris</span> Variable star in the constellation Canis Major

Iota Canis Majoris, Latinized from ι Canis Majoris, is a solitary variable supergiant star in the southern constellation of Canis Major. It is visible to the naked eye with an apparent visual magnitude that varies between +4.36 and +4.40. The distance to this star is approximately 2,500 light years based on spectroscopic measurements. It is drifting further away with a radial velocity of +42 km/s.

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<span class="mw-page-title-main">V381 Cephei</span> Triple star system in the constellation Cepheus

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−2.2 km/s and thus is a probable runaway star.

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HD 101570 is a single star in the southern constellation of Centaurus. It has a yellow hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.93. The star is located at a distance of approximately 1,080 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +18 km/s. It has an absolute magnitude of −2.24.

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<span class="mw-page-title-main">1 Puppis</span> Star in the constellation Puppis

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<span class="mw-page-title-main">GX Velorum</span> Star in the constellation Vela

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<span class="mw-page-title-main">10 Persei</span> Blue supergiant star in the constellation Perseus

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<span class="mw-page-title-main">HD 121228</span> Star in the constellation Centaurus

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<span class="mw-page-title-main">MZ Puppis</span> Red supergiant star in the constellation of Puppis

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Pi<sup>2</sup> Octantis Star in the constellation Octans

Pi2 Octantis, Latinized from π2 Octantis, is a solitary star situated in the southern circumpolar constellation Octans. It has an apparent magnitude of 5.64, allowing it to be faintly visible to the naked eye under ideal conditions. Located 1,570 light years away, the star is approaching the Sun with a heliocentric radial velocity of −13.8 km/s.

HD 34255, also known HR 1720, is a star located in the northern circumpolar constellation Camelopardalis, the giraffe. It has an apparent magnitude of 5.60, allowing it to be faintly visible to the naked eye. The object is located relatively far at a distance of about 1.65 kly but is approaching the Solar System with a heliocentric radial velocity of −7.7 km/s.

References

  1. 1 2 3 4 5 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.
  2. 1 2 3 4 5 6 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 Fraser, M.; et al. (2010). "Atmospheric parameters and rotational velocities for a sample of Galactic B-type supergiants". Monthly Notices of the Royal Astronomical Society. 404 (3): 1306. arXiv: 1001.3337 . Bibcode:2010MNRAS.404.1306F. doi: 10.1111/j.1365-2966.2010.16392.x . S2CID   118674151.
  4. 1 2 Houk, Nancy; Cowley, A. P. (1979). Michigan catalogue of two-dimensional spectral types for the HD stars. Vol. 1. Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan. Bibcode:1978mcts.book.....H.
  5. 1 2 3 Maíz Apellániz, J.; et al. (August 2018). "Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions". Astronomy & Astrophysics. 616: 20. arXiv: 1804.06915 . Bibcode:2018A&A...616A.149M. doi:10.1051/0004-6361/201832787. S2CID   55004808. A149.
  6. 1 2 3 4 Weßmayer, D.; Przybilla, N.; Butler, K. (2022-12-01), "Quantitative spectroscopy of B-type supergiants", Astronomy & Astrophysics , 668: A92, arXiv: 2208.02692 , Bibcode:2022A&A...668A..92W, doi:10.1051/0004-6361/202243973, ISSN   0004-6361
  7. ↑ "HD 125288". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-02-03.
  8. ↑ 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.
  9. ↑ "David Bowie Honored With Lightning Bolt-Shaped Constellation". The Huffington Post. 18 January 2016. Retrieved 2016-01-18.
  10. ↑ "Constellation Bowie? I don't think so". Guy's weblog. 2016-01-18. Retrieved 2016-01-18.
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