UY Volantis

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UY Volantis
Observation data
Epoch J2000      Equinox J2000
Constellation Volans
Right ascension 07h 48m 33.71s[1]
Declination −67° 45′ 07.70″[1]
Apparent magnitude (V) 16.9[2]
Characteristics
Apparent magnitude (U) 16.10[2]
Apparent magnitude (B) 17[2]
Apparent magnitude (R) 16.7[1]
Astrometry
Radial velocity (Rv)20[3] km/s
Parallax (π)0.125 ± 0.008[4][note 1] mas
Distance26,000 ± 2,000 ly
(8,000 ± 500 pc)
Other designations
EXO 0748-676
Database references
SIMBADdata

UY Volantis, also known as EXO-0748-676, is a low mass X-ray binary[5] system located in the constellation Volans. With an apparent magnitude of 16.9, it requires a powerful telescope to see. With a radial velocity of 20 km/s, it's drifting away from the Solar System, and is currently located 26,000 light years away.

Properties[]

Not much is know about the components, but they take 3.82 hours to orbit each other.[6]

Notes[]

  1. ^ calculated from distance

References[]

  1. ^ a b c Monet, David G.; Levine, Stephen E.; Canzian, Blaise; Ables, Harold D.; Bird, Alan R.; Dahn, Conard C.; Guetter, Harry H.; Harris, Hugh C.; Henden, Arne A.; Leggett, Sandy K.; Levison, Harold F. (2003-02-01). "The USNO-B Catalog". The Astronomical Journal. 125: 984–993. arXiv:astro-ph/0210694. doi:10.1086/345888. ISSN 0004-6256.
  2. ^ a b c Liu, Q. Z.; van Paradijs, J.; van den Heuvel, E. P. J. (July 2007). "A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)". Astronomy and Astrophysics. 469 (2): 807–810. arXiv:0707.0544. doi:10.1051/0004-6361:20077303. ISSN 0004-6361.
  3. ^ Duflot, M.; Figon, P.; Meyssonnier, N. (1995-12-01). "Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue". Astronomy and Astrophysics Supplement Series. 114: 269. ISSN 0365-0138.
  4. ^ Jonker, P. G.; Nelemans, G. (2004-10-01). "The distances to Galactic low-mass X-ray binaries: consequences for black hole luminosities and kicks". Monthly Notices of the Royal Astronomical Society. 354: 355–366. arXiv:astro-ph/0407168. doi:10.1111/j.1365-2966.2004.08193.x. ISSN 0035-8711.
  5. ^ Baumgartner, W. H.; Tueller, J.; Markwardt, C. B.; Skinner, G. K.; Barthelmy, S.; Mushotzky, R. F.; Evans, P. A.; Gehrels, N. (2013-08-01). "The 70 Month Swift-BAT All-sky Hard X-Ray Survey". The Astrophysical Journal Supplement Series. 207: 19. doi:10.1088/0067-0049/207/2/19. hdl:2381/18987. ISSN 0067-0049.
  6. ^ Ritter, H.; Kolb, U. (2003-06-01). "Catalogue of cataclysmic binaries, low-mass X-ray binaries and related objects (Seventh edition)". Astronomy and Astrophysics. 404: 301–303. doi:10.1051/0004-6361:20030330. ISSN 0004-6361.


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