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]

HD 142415 b

Discovery
Discovered by	Mayor et al.
Discovery site	La Silla Observatory
Discovery date	30 June 2003
Detection method	doppler spectroscopy (CORALIE)
Orbital characteristics
Apastron	1.605 AU (240,100,000 km)
Periastron	0.535 AU (80,000,000 km)
Semi-major axis	1.07 AU (160,000,000 km)
Eccentricity	0.5
Orbital period (sidereal)	386.3±1.6 d 1.058 y
Average orbital speed	30.2
Time of periastron	2,451,519 ± 4
Argument of periastron	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

• HD 10647 b
• HD 111232 b
• HD 141937 b
• HD 142022 Ab
• HD 169830 c
• HD 216770 b
• HD 41004 Ab
• HD 65216 b