HD 129445 b

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]

HD 129445 b
Discovery
Discovered byArriagada et al.[1]
Discovery siteLas Campanas Observatory
Discovery dateJanuary 26, 2010
Doppler spectroscopy
Orbital characteristics
Apastron5.0 AU (750,000,000 km)
Periastron0.9 AU (130,000,000 km)
2.9 ± 0.2 AU (434,000,000 ± 30,000,000 km)
Eccentricity0.70 ± 0.10
1840 ± 55 d
5.04 y
17
24553093 ± 50
163 ± 15
Semi-amplitude38 ± 6
StarHD 129445

    References

    1. Arriagada, Pamela; et al. (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.
    2. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2020-01-10.
    3. "HD 129445". Universe Guide. Retrieved 2020-01-10.

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.