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HD 50554 b 
Summary
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.[3]
| Discovery[1][2] | |
|---|---|
| Discovered by | Geneva Extrasolar Planet Search |
| Discovery date | April 4, 2001 |
| Doppler spectroscopy | |
| Orbital characteristics[3] | |
| 2.339+0.03 −0.029 AU | |
| Eccentricity | 0.482+0.015 −0.015 |
| 1238+7 −8 d 3.39+0.02 −0.023 yr | |
| Inclination | 61°±12° or 119°±12° |
| 97°+50° −40° | |
| 2455567+21 −23 | |
| 4.0°+2.6° −2.1° | |
| Semi-amplitude | 91.5 ± 7.6[4] |
| Star | HD 50554 |
| Physical characteristics[3] | |
| Mass | 5.85+0.9 −0.52 MJ |
See also edit
References edit
- ^ a b "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
- ^ a b 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. Bibcode:2002PASP..114..529F. doi:10.1086/341677. JSTOR 10.1086/341677.
- ^ a b c Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. 23 (5): 055022. arXiv:2303.12409. Bibcode:2023RAA....23e5022X. doi:10.1088/1674-4527/accb7e. S2CID 257663647.
- ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
External links edit
- "HD 50554 b". Extrasolar Planets Encyclopaedia.