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 |
Distance | 26,000 ± 2,000 ly (8,000 ± 500 pc) |
Other designations | |
EXO 0748-676 | |
Database references | |
SIMBAD | data |
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[]
- ^ calculated from distance
References[]
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
Categories:
- X-ray binaries
- Volans (constellation)
- Objects with variable star designations
- Variable star stubs
- Multiple star stubs