HD 89307 b
Appearance
Discovery[1][2] | |
---|---|
Discovered by | Butler et al. Fischer et al. |
Discovery site | United States |
Discovery date | December 26, 2004 |
radial velocity | |
Orbital characteristics[3] | |
3.331+0.052 −0.053 | |
Eccentricity | 0.174+0.041 −0.043 |
2188+30 −28 d 5.991+0.081 −0.078 yr | |
Average orbital speed | 16.6 |
Inclination | 72°+13° −15° or 108°+15° −13° |
151+20 −133 | |
2456758±96 | |
22+320 −14 | |
Semi-amplitude | 31.0 ± 4.9 |
Star | HD 89307 |
Physical characteristics[3] | |
Mass | 2.02+0.27 −0.15 MJ |
HD 89307 b is an exoplanet orbiting the star HD 89307 located approximately 104 light-years away in the constellation of Leo. The planet takes roughly 2164 days or 5.9 years to orbit its star. The planet's minimum mass is 1.92 MJ; initially, the true mass could not be determined since the inclination was unknown. As is common for many long-period exoplanets, the eccentricity is greater than any planets in the Solar System, orbiting at an average distance of 3.28
References
[edit]- ^ a b Butler; 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. Archived from the original on 2019-12-07. Retrieved 2009-03-11.
- ^ Fischer, Debra; et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal. 703 (2): 1545–1556. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545. S2CID 15524804.
- ^ a b c Xiao, Guang-Yao; Liu, Yu-Juan; et al. (March 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. arXiv:2303.12409.
External links
[edit]- "Notes for planet HD 89307 b". Extrasolar Planets Encyclopaedia. Retrieved 2008-08-18.
- "HD 89307". Exoplanets. Archived from the original on 2009-11-24. Retrieved 2008-08-18.