HD 130322 b

HD 130322 b, officially named Eiger, is an exoplanet with a minimum mass slightly more than that of Jupiter. It orbits the star in a very close orbit distance being only a quarter that of Mercury from the Sun. It is thus a so-called "hot Jupiter". The planet orbits the star every 10 days 17 hours in a very circular orbit.^[2]

HD 130322 b / Eiger

Discovery
Discovered by	Udry, Mayor, Pepe et al.
Discovery site	La Silla Observatory
Discovery date	4 May 2000
Detection method	Doppler spectroscopy (CORALIE)
Orbital characteristics
Semi-major axis	0.088 AU (13,200,000 km)
Eccentricity	0.029±0.016[1]
Orbital period (sidereal)	10.70871±0.00018[1] d
Time of periastron	2453996.4±1.1[1]
Argument of periastron	193±36[1]
Semi-amplitude	112.5±2.4[1]
Star	HD 130322

Naming

The planet HD 130322 b is named Eiger. The name was selected in the NameExoWorlds campaign by Switzerland, during the 100th anniversary of the IAU. Eiger is one of the prominent peaks of the Bernese Alps.^[3][4]

See also

• List of exoplanets discovered before 2000