BB Doradus

BB Dor
Observation data; Epoch J2000 Equinox J2000
Constellation	Dorado
Right ascension	05h 29m 28.66s
Declination	−58° 54′ 46.7″
Apparent magnitude (V)	14.3-19.3
Characteristics
Spectral type	WD + M3-4V
Variable type	SW Sex[1]
Astrometry
Parallax (π)	1.0871 ± 0.0263 mas
Distance	3,000 ± 70 ly ; (920 ± 20 pc)
Absolute magnitude (MV)	15.52[2]
Details
Temperature	9365 K
Other designations
	BB Dor, GSC 08530-00528, AAVSO 0528-58, EC 05287-5857, 1RXS J0529-5854.
Database references
SIMBAD	data

BB Doradus or BB Dor is a cataclysmic variable or nova-like star that is a binary star system composed of a red dwarf and a white dwarf.[3] The accretion disk orbiting the white dwarf appears to be inclined at an angle of just ~10° to the line of sight from the Earth.[4]

Its parallax (movement against background stars due to the earth's orbit around the Sun) given by Gaia indicates it is about 3,000 light years away.[5]

References

Schmidtobreick, L.; et al. (October 2011). Henney, W. J.; Torres-Peimbert, S. (eds.). The structure of BB Doradus in quiescence. XIII Latin American Regional IAU Meeting. Revista Mexicana de Astronomía y Astrofísica. 40. p. 288-288. Bibcode:2011RMxAC..40..288S.
"V* BB Dor". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-11-22.
Watson, Christopher (24 February 2012). "BB Doradus". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 November 2014.
Godon, Patrick; et al. (November 2008). "Far Ultraviolet Spectroscopic Explorer Spectroscopy of the Nova-like Cataclysmic Variable BB Doradus". The Astrophysical Journal. 687 (1): 532–541. arXiv:0805.4209. Bibcode:2008ApJ...687..532G. doi:10.1086/591494.
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.

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[Schmidtobreick-1] Schmidtobreick, L.; et al. (October 2011). Henney, W. J.; Torres-Peimbert, S. (eds.). The structure of BB Doradus in quiescence. XIII Latin American Regional IAU Meeting. Revista Mexicana de Astronomía y Astrofísica. 40. p. 288-288. Bibcode:2011RMxAC..40..288S.

[2] "V* BB Dor". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-11-22.

[AAVSOBB-3] Watson, Christopher (24 February 2012). "BB Doradus". AAVSO Website. American Association of Variable Star Observers. Retrieved 5 November 2014.

[Godon2008-4] Godon, Patrick; et al. (November 2008). "Far Ultraviolet Spectroscopic Explorer Spectroscopy of the Nova-like Cataclysmic Variable BB Doradus". The Astrophysical Journal. 687 (1): 532–541. arXiv:0805.4209. Bibcode:2008ApJ...687..532G. doi:10.1086/591494.

[GaiaDR2-5] 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.