| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Fornax |
| Right ascension | 03h 35m 28.65156s[2] |
| Declination | −25° 44′ 21.7656″[2] |
| Apparent magnitude (V) | 17.0 - 20.5[3] |
| Characteristics | |
| Spectral type | D + M4.5V[4] |
| Variable type | AM Her + eclipses[5] |
| Astrometry | |
| Radial velocity (Rv) | 150[6] km/s |
| Proper motion (μ) | RA: 18.137[2] mas/yr Dec.: −1.470[2] mas/yr |
| Parallax (π) | 4.1736 ± 0.0742 mas[2] |
| Distance | 780 ± 10 ly (240 ± 4 pc) |
| Orbit[7] | |
| Period (P) | 0.087865437 d (126.526229 min) |
| Semi-major axis (a) | 3.67×10−3 AU (5.49×105 km) |
| Inclination (i) | 81° |
| Details[8] | |
| White dwarf | |
| Mass | 0.71 M☉ |
| Radius | 0.011 R☉ |
| M dwarf | |
| Mass | 0.14 M☉ |
| Radius | 0.20 R☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
UZ Fornacis (abbreviated as UZ For) is a binary star in the constellation of Fornax. It appears exceedingly faint with a maximum apparent magnitude 17.0.[3] Its distance, as measured by Gaia using the parallax method, is about 780 light-years (240 parsecs).[2]
The system consists of two stars, a white dwarf and a red dwarf, in close orbit around each other. It is hypothesized that there are also two planets orbiting the central stars.[4]
- ^ Cite error: The named reference
Dai2010was invoked but never defined (see the help page). - ^ a b c d e f 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.
- ^ a b Downes, Ronald A.; Webbink, Ronald F.; Shara, Michael M.; Ritter, Hans; Kolb, Ulrich; Duerbeck, Hilmar W. (2001). "A Catalog and Atlas of Cataclysmic Variables: The Living Edition". Publications of the Astronomical Society of the Pacific. 113 (784): 764. arXiv:astro-ph/0102302. Bibcode:2001PASP..113..764D. doi:10.1086/320802. S2CID 16285959.
- ^ a b Cite error: The named reference
Khangalewas invoked but never defined (see the help page). - ^ "UZ Fornacis". International Variable Star Index. Retrieved 2020-03-27.
- ^ a b "V* UZ For". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-03-26.
- ^ Cite error: The named reference
Kubewas invoked but never defined (see the help page). - ^ Stockman, H. S.; Schmidt, Gary D. (1996). "Hubble Space Telescope Time-resolved Ultraviolet Spectroscopy of ST Leonis Minoris and UZ Fornacis: Resolving the Accretion Stream". The Astrophysical Journal. 468: 883. Bibcode:1996ApJ...468..883S. doi:10.1086/177744.