Epoch J2000.0 Equinox J2000.0
|Right ascension||11h 35m 26.9485s|
|Declination||−32° 32′ 23.900″|
|Apparent magnitude (V)||9.79|
|Apparent magnitude (U)||12.508|
|Apparent magnitude (B)||11.28|
|Apparent magnitude (R)||8.821|
|Apparent magnitude (I)||7.664|
|Apparent magnitude (J)||6.471|
|Apparent magnitude (H)||5.856|
|Apparent magnitude (K)||5.623|
|U−B color index||1.23|
|B−V color index||1.49|
|V−R color index||0.97|
|R−I color index||1.157|
|Proper motion (μ)||RA: –69.85 mas/yr
Dec.: –852.54 mas/yr
|Parallax (π)||110.65 ± 1.81 mas|
|Distance||29.5 ± 0.5 ly
(9.0 ± 0.1 pc)
|Absolute magnitude (MV)||10.01|
|Surface gravity (log g)||4.42 cgs|
Bright Star Catalogue (5th rev. ed.)
Gliese 433 is a dim red dwarf star in the constellation of Hydra, roughly 29.5 light years away from the Sun. Astronomers have announced the discovery of a very low-mass extrasolar planet in close orbit.
Gliese 433 b is an extrasolar planet which orbits the star. This planet is a super-Earth with at least six times the mass of Earth and takes approximately seven days to orbit the star at a semimajor axis of approximately 0.056 AU. This planet was announced in a press release in October 2009, but no discovery paper has yet been made available. A study described in a 2014 paper by Tuomi et al. confirms both detections.
(in order from star)
- Zechmeister, M.; Kürster, M.; Endl, M. (August 6, 2009). "The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs". arXiv:0908.0944.
- "32 New Exoplanets Found". ESO News. ESO. Retrieved 15 February 2012.
- "Bayesian search for low-mass planets around nearby M dwarfs" (PDF). Mon. Not. R. Astron. Soc. 000, 1 – 31. RAS. Retrieved 18 February 2014.
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