HD 129445 b
| Discovery | |
|---|---|
| Discovered by | Arriagada et al.[1] |
| Discovery site | Las Campanas Observatory |
| Discovery date | January 26, 2010 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| Apastron | 5.0 AU (750,000,000 km) |
| Periastron | 0.9 AU (130,000,000 km) |
| 2.9 ± 0.2 AU (434,000,000 ± 30,000,000 km) | |
| Eccentricity | 0.70 ± 0.10 |
| 1840 ± 55 d 5.04 y | |
Average orbital speed | 17 |
| 24553093 ± 50 | |
| 163 ± 15 | |
| Semi-amplitude | 38 ± 6 |
| Star | HD 129445 |
HD 129445 b is an eccentric Jupiter gas giant exoplanet orbiting the star HD 129445 which was discovered by the Magellan Planet Search Program in 2010.[1] Its mass is 1.6 times Jupiter's, and it takes 5 years to complete one orbit around HD 129445, a G-type star approximately 210 light years away.[2][3]
References
- ^ a b Arriagada, Pamela; Butler, R. Paul; Minniti, Dante; López-Morales, Mercedes; Shectman, Stephen A.; Adams, Fred C.; Boss, Alan P.; Chambers, John E. (2010). "Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program". The Astrophysical Journal. 711 (2): 1229–35. arXiv:1001.4093. Bibcode:2010ApJ...711.1229A. doi:10.1088/0004-637X/711/2/1229.
{{cite journal}}: Unknown parameter|displayauthors=ignored (|display-authors=suggested) (help) - ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2020-01-10.
- ^ "HD 129445". Universe Guide. Retrieved 2020-01-10.