Astronomy:HD 50554 b
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Short description: Extrasolar planet in the constellation Gemini
| Discovery[1][2] | |
|---|---|
| Discovered by | Geneva Extrasolar Planet Search |
| Discovery date | April 4, 2001 |
| Doppler spectroscopy | |
| Orbital characteristics[4] | |
| 2.339+0.03 −0.029 astronomical unit|AU | |
| Eccentricity | 0.482+0.015 −0.015 |
| Orbital period | 1238+7 −8 d 3.39+0.02 −0.023 yr |
| Inclination | 61°±12° or 119°±12° |
| Longitude of ascending node | 97°+50° −40° |
| astron|astron|helion}} | 2455567+21 −23 |
| 4.0°+2.6° −2.1° | |
| Semi-amplitude | 91.5 ± 7.6[3] |
| Star | HD 50554 |
| Physical characteristics[4] | |
| Mass | 5.85+0.9 −0.52 Jupiter mass |
HD 50554 b is a Jupiter-sized exoplanet with a minimum mass 4.4 times that of Jupiter. The planet was announced in 2001 by the European Southern Observatory and formally published in 2002 using observations from the Lick and Keck telescopes.[1][2] In 2023, the inclination and true mass of HD 50554 b were determined via astrometry.[4]
See also
References
- ↑ 1.0 1.1 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
- ↑ 2.0 2.1 Fischer, Debra A. et al. (2002). "Planetary Companions to HD 136118, HD 50554, and HD 106252". Publications of the Astronomical Society of the Pacific 114 (795): 529–535. doi:10.1086/341677. Bibcode: 2002PASP..114..529F.
- ↑ Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. Bibcode: 2006ApJ...646..505B.
- ↑ 4.0 4.1 4.2 Xiao, Guang-Yao et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics 23 (5): 055022. doi:10.1088/1674-4527/accb7e. Bibcode: 2023RAA....23e5022X.
External links
Coordinates: 
06h 54m 42.8253s, +24° 14′ 44.011″
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