HD 121504 b

HD 121504 b

Discovery
Discovered by	Mayor et al.
Discovery site	La Silla Observatory
Discovery date	August 7, 2000
Detection method	Radial velocity (CORALIE)
Designations
Alternative names	HIP 68162 b
Orbital characteristics
Semi-major axis	0.33 AU 49 Gm
Eccentricity	0.03 ± 0.01
Orbital period	63.33 ± 0.03 d 0.1734 year
Angular distance	7 mas
Longitude of periastron	265° ± 12°
Time of periastron	2,451,450 ± 2 JD
Semi-amplitude	50.8 ± 0.9 m/s
Physical characteristics
Mass	>1.22 MJ >388 ME

HD 121504 b is an exoplanet that is likely be slightly less massive than Jupiter. Although the radial velocity method that was used to detect the planet can only measure the minimum mass of the planet, it is very unlikely that its true mass would be much higher.^[1]

HD 121504 b orbits the star at a distance of about one third of Earth's distance from the Sun, and has a slightly eccentric orbit.

References

1. 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 121504 b". The Extrasolar Planets Encyclopaedia.
• "HD 121504". Exoplanets.

Coordinates: 13^h 57^m 17.2375^s, −56° 02′ 24.153″