HD 125288

Last updated
HD 125288
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Centaurus
Right ascension 14h 20m 19.54262s [1]
Declination −56° 23′ 11.3900″ [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: −9.64 [1]   mas/yr
Dec.: −7.46 [1]   mas/yr
Parallax (π)2.66 ± 0.20  mas [1]
Distance 1,230 ± 90  ly
(380 ± 30  pc)
Absolute magnitude  (MV)−3.56 [2]
Details
Mass 7.9±0.4 [6]   M☉
Radius 18.87+1.35
−1.50 [7]   R☉
Luminosity 806.3±142.9 [7]   L☉
Surface gravity (log g)2.55 [3]   cgs
Temperature 7,081+299
−242 [7]   K
Rotational velocity (v sin i)23 [3]  km/s
Age 37.3±4.2 [6]   Myr
Other designations
v Cen, CPD−55°5984, FK5  529, GC  19318, HD  125288, HIP  70069, HR  5358, SAO  241641 [8]
Database references
SIMBAD data

HD 125288 is a single [9] 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 parallax measurements, it is located at a distance of approximately 1,230  light years from the Sun. [1] 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 37 million years old and has 8 times the mass of the Sun. [6] The star has expanded to 19 [7] times the girth of the Sun and is spinning with a projected rotational velocity of 23 km/s. [3] It is radiating 806 times the luminosity of the Sun from its photosphere at an effective temperature of 7,081 K. [7]

In 2016, an asterism including HD 125288 (SAO 241641) was unofficially identified in honor of David Bowie. [10] [11]

Related Research Articles

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HD 73390, also called e1 Carinae, is a binary star system in the constellation Carina. It is approximately 870 light years from Earth. The primary is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.27. It displays an infrared excess and is a candidate host of an orbiting debris disk. The secondary is a magnitude 8.9 star which has a mass and temperature similar to the Sun.

HD 102776, also known by its Bayer designation j Centauri, is a suspected astrometric binary star system in the southern constellation of Centaurus. It has a blue-white hue and is faintly visible to the naked eye with a typical apparent visual magnitude of 4.30. The distance to this star is approximately 600 light years based on parallax, and it is drifting further away with a radial velocity of ~29 km/s. It is a member of the Lower Centaurus Crux subgroup of the Sco OB2 association. HD 102776 has a relatively large peculiar velocity of 31.1 km/s and is a candidate runaway star that was ejected from its association, most likely by a supernova explosion.

HD 41534 is a binary star system in the southern constellation of Columba. It is dimply visible to the naked eye with a combined apparent visual magnitude of 5.65. The distance to this system is approximately 950 light-years based on parallax, and it is receding from the Sun with a radial velocity of +93 km/s. This is a runaway star system with an unusually high peculiar velocity of 187.6+12.2
−13.8 km/s. It is thought to have been ejected from the OB association Sco OB 1 approximately 14 million years ago.

Omega<sup>1</sup> Cygni B-type subgiant star in the constellation Cygnus

Omega1 Cygni, Latinized from ω1 Cygni, is the Bayer designation for a solitary star in the northern constellation of Cygnus. It is visible to the naked eye with an apparent visual magnitude of 4.94. Based upon an annual parallax shift of 2.59 mas, it is estimated to lie roughly 1,260 light years from the Sun. Relative to its neighbors, this star has a peculiar velocity of 25.7±2.2 km/s.

HD 189276 is a single star in the northern constellation Cygnus, positioned near the northern constellation border with Draco. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.98. The star is located at a distance of approximately 820 light years from the Sun based on parallax, and it has an absolute magnitude of −2.25. It is drifting further away with a radial velocity of +4 km/s. The star has a high peculiar velocity of 38.5+1.8
−2.2 km/s and thus is a probable runaway star.

HD 47667 is a single star in the southern constellation of Canis Major. It is visible to the naked eye with an apparent visual magnitude of 4.832. The estimated distance to this star, based upon an annual parallax shift of 3.30±0.35 mas, is roughly 1,000 light years. It is moving further away with a heliocentric radial velocity of +29 km/s. The star made its closest approach to the Sun some 8.7 million years ago at a separation of around 362 ly (111.12 pc).

HD 56577 is a single K giant or supergiant star in the southern constellation of Canis Major.This star is Gould's 145th of Canis Major in his Uranometria Argentina. Kostjuk erroneously lists it as simply "145 CMa". SIMBAD follows this error in its object query result as "* 145 CMa – Star".

HD 102350 is a single star in the constellation Centaurus. It has a yellow hue and is visible to the naked eye with an apparent visual magnitude of 4.11. The distance to this star is approximately 390 light years based on parallax, but it is drifting closer with a radial velocity of −3 km/s. It has an absolute magnitude of −1.51.

3 Ceti is a single, orange-hued star located around 2,100 light years away in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of 4.95. The star is moving closer to the Earth with a heliocentric radial velocity of −42 km/s. It has a peculiar velocity of 60.7+3.8
−6.2 km/s and is a candidate runaway star.

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−4.3 km/s and may be a runaway star.

HD 115211 is a single star in the southern constellation of Musca. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.86. Its distance from Earth is approximately 1,370 light years based on parallax, and it is drifting closer to the Sun with a radial velocity of −10 km/s. It has an absolute magnitude of −2.94.

<span class="mw-page-title-main">V1073 Scorpii</span> Variable star in the constellation Scorpius

V1073 Scorpii is a variable star in the constellation Scorpius. It has a non-Greek Bayer designation of k Scorpii. The star has a blue-white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around +4.87. Parallax measurements yield a distance estimate of approximately 2,920 ly (896 pc) from the Sun, and it is drifting further away with a radial velocity of +7 km/s. It has an absolute magnitude of −6.8

HD 73634 is a single star in the southern constellation of Vela. It has the Bayer designation e Velorum; HD 73634 is the star's designation from the Henry Draper Catalogue. The star is white in hue and is faintly visible to the naked eye, having an apparent visual magnitude of +4.11. Parallax measurements provide a distance estimate of approximately 1,800 light years from the Sun. It is drifting further away with a radial velocity of +19 km/s.

HD 85622 is a binary star system in the southern constellation of Vela. It is visible to the naked eye with an apparent visual magnitude of 4.58. The distance to HD 85622 can be estimated from its annual parallax shift of 4.3 mas, yielding a value of 750 light years. It is moving further from the Earth with a heliocentric radial velocity of +8 km/s.

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

GX Velorum is a solitary variable star in the southern constellation of Vela. It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude that fluctuates around 4.99. Based upon parallax measurements, it is located approximately 4,200 light years distant from the Sun, and is drifting further away with a radial velocity of +28 km/s. It may be a member of the Vela OB1 association of co-moving stars.

<span class="mw-page-title-main">V372 Carinae</span> Star in the constellation Carina

V372 Carinae is a single star in the southern constellation of Carina. Located around 1300 light-years distant. It shines with a luminosity approximately 1742 times that of the Sun and has a surface temperature of 14132 K. It is a Beta Cephei variable.

HD 83058 is a subgiant star in the constellation Vela and a spectroscopic binary. It is visible to the naked eye with an apparent visual magnitude of 5.0. Based upon an annual parallax shift of 3.4254 mas, it is located 950 light-years from the Sun. The system is moving further away with a heliocentric radial velocity of +35 km/s.

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 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 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 3 4 5 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 Tetzlaff, N.; et al. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv: 1007.4883 . Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID   118629873.
  7. 1 2 3 4 5 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.
  8. ↑ "HD 125288". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-02-03.
  9. ↑ 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.
  10. ↑ "David Bowie Honored With Lightning Bolt-Shaped Constellation". The Huffington Post. 18 January 2016. Retrieved 2016-01-18.
  11. ↑ "Constellation Bowie? I don't think so". Guy's weblog. 2016-01-18. Retrieved 2016-01-18.
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