HD 130322 b 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
Discovered byUdry, Mayor,
Pepe et al.
Discovery siteLa Silla Observatory
Discovery date4 May 2000
Doppler spectroscopy
Orbital characteristics
0.088 AU (13,200,000 km)
10.70871±0.00018[1] d
StarHD 130322

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]


  1. ^ a b c d e Hinkel, Natalie R.; et al. (2015). "Refined Properties of the Hd 130322 Planetary System". The Astrophysical Journal. 803 (1). 8. arXiv:1502.03441. Bibcode:2015ApJ...803....8H. doi:10.1088/0004-637X/803/1/8.
  2. ^ Udry, S.; et al. (2000). "The CORALIE survey for southern extra-solar planets II. The short-period planetary companions to HD 75289 and HD 130322". Astronomy and Astrophysics. 356 (2): 590–598. Bibcode:2000A&A.....356590U. Archived from the original on 2012-03-28. Retrieved 2008-10-31.
  3. ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
  4. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.

External linksEdit

Coordinates:   14h 47m 32.7269s, −00° 16′ 53.314″