HV 888

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Star
HV 888
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Swordfish
Right ascension 05 h 04 m 14.12 s
declination −67 ° 27 ′ 6.4 ″
Apparent brightness 11,861 likes
Typing
Spectral class M4 Ia
Astrometry
distance 50,000  ly
Physical Properties
radius 1.765  R ☉
Luminosity

392,442  L ☉

Effective temperature 3.442  K
Other names
and catalog entries
Other names WOH G64, Stephenson 2-18

HV 888 , also known as WOH S140 , is a red super giant (RSG) in the Large Magellanic Cloud , a companion galaxy to the Milky Way , and can be found in the constellation Swordfish , which is located in the southern hemisphere. It is one of the largest known stars with a radius of more than a thousand solar radii and is also one of the most luminous stars of its kind with about 300,000 times the brightness of the sun . The effective temperature is estimated to be around 3,500 Kelvin (K). If it were in the center of the solar system , its photosphere would devour Jupiter's orbit .

See also

Web links

  • hv 888. In: Universe Guide. Accessed August 10, 2020 (English).

literature

  • N. Mauron, E. Josselin: The mass-loss rates of red supergiants and the de Jager prescription . In: Astronomy & Astrophysics . tape 526 , February 1, 2011, p. A156 , doi : 10.1051 / 0004-6361 / 201013993 (English, aanda.org [PDF]).
  • MJ Pierce, JS Jurcevic, D. Crabtree: Period-luminosity relations for red supergiant variables - I. The calibration . In: Monthly Notices of the Royal Astronomical Society . tape 313 , April 1, 2000, pp. 271–280 , doi : 10.1046 / j.1365-8711.2000.03196.x , bibcode : 2000MNRAS.313..271P (English).

Individual evidence

  1. ↑ NN Samus; OV Durlevich: VizieR Online Data Catalog: General Catalog of Variable Stars (Samus + 2007-2013) . In: VizieR On-line Data Catalog: B / GCVS . 2009, S2CID :, p. B / gcvs , bibcode : 2009yCat .... 102025S (English).
  2. ^ AZ Bonanos; DL Massa; M. Sewilo; DJ Lennon; N. Panagia; LJ Meixner; M. Babler; S. Bracker; MR Meade; KD Gordon; JL Hora; R. Indebetouw; BA Whitney: Spitzer SAGE Infrared Photometry of Massive Stars in the Large Magellanic Cloud . tape 138 , no. 4 , 2009, S2CID :, p. 1003-1021 , doi : 10.1088 / 0004-6256 / 138/4/ 1003 , arxiv : 0905.1328 , bibcode : 2009AJ .... 138.1003B (English).
  3. ↑ Yi Ren; Bi-Wei Jiang: On the Granulation and Irregular Variation of Red Supergiants . In: The Astrophysical Journal . tape 898 , no. 1 , July 20, 2020, ISSN  1538-4357 , S2CID :, p. 24 , doi : 10.3847 / 1538-4357 / ab9c17 , arxiv : 2006.06605 , bibcode : 2020ApJ ... 898 ... 24R (English).
  4. ↑ HV 888. Retrieved on August 9, 2020 (English).
  5. ↑ J. Th. Van Loon; M.-RL Cioni; AA Zijlstra; C. Loup: An empirical formula for the mass-loss rates of dust-enshrouded red supergiants and oxygen-rich Asymptotic Giant Branch stars . In: Astronomy and Astrophysics . tape 438 , no. 1 , 2005, S2CID: 16724272, p. 273–289 , doi : 10.1051 / 0004-6361: 20042555 , arxiv : astro-ph / 0504379 , bibcode : 2005A & A ... 438..273V (English).
  6. ↑ D. Kamath; PR Wood; H. Van Winkel: Optically visible post-AGB stars, post-RGB stars and young stellar objects in the Large Magellanic Cloud . In: Monthly Notices of the Royal Astronomical Society . tape 454 , no. 2 , December 2015, S2CID: 59496789, p. 1468–1502 , doi : 10.1093 / mnras / stv1202 , arxiv : 1508.00670 , bibcode : 2015MNRAS.454.1468K (English).
  7. ↑ Ben Davies; Paul A. Crowther; Emma R. Beasor: The luminosities of cool supergiants in the Magellanic Clouds, and the Humphreys – Davidson limit revisited . In: Monthly Notices of the Royal Astronomical Society . tape 478 , no. 3 , 2018, S2CID: 59459492, p. 3138–3148 , doi : 10.1093 / mnras / sty1302 , arxiv : 1804.06417 , bibcode : 2018MNRAS.478.3138D (English).
  8. ↑ MAT Groenewegen; GC Sloan: Luminosities and mass-loss rates of Local Group AGB stars and red supergiants . Astronomy & Astrophysics, 2018, S2CID: 59327105, p. A114 , doi : 10.1051 / 0004-6361 / 201731089 , arxiv : 1711.07803 , bibcode : 2018A & A ... 609A.114G (English, volume 609).