HD 142415 b
HD 142415 b is an exoplanet with the semi-amplitude of 51.3 ± 2.3 m/s. This indicates the minimum mass of 1.69 Jupiter mass, an orbital period of 386.3 days, and the semi-major axis of 1.07 astronomical units based from its stellar mass. The wild, oval pathed wobble of the star used by Doppler spectrometer indicates that the orbit of the planet is highly eccentric at around 50%.[1]
| Discovery | |
|---|---|
| Discovered by | Mayor et al. |
| Discovery site | La Silla Observatory |
| Discovery date | 30 June 2003 |
| doppler spectroscopy (CORALIE) | |
| Orbital characteristics | |
| Apastron | 1.605 AU (240,100,000 km) |
| Periastron | 0.535 AU (80,000,000 km) |
| 1.07 AU (160,000,000 km) | |
| Eccentricity | 0.5 |
| 386.3±1.6 d 1.058 y | |
Average orbital speed | 30.2 |
| 2,451,519 ± 4 | |
| 255 ± 4 | |
| Semi-amplitude | 51.3 ± 2.3 |
| Star | HD 142415 |
The planet was discovered in La Silla Observatory on 30 June 2003 by Mayor, who used the CORALIE spectrograph.
See also
References
- Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250.
External links
- "HD 142415". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-11-01.
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