HD 192699 b

HD 192699 b / Khomsa
Discovery[1]
Discovered byJohnson et al.
Discovery siteLick Observatory and Keck Observatory
Discovery date2007
Doppler spectroscopy
Orbital characteristics[2]
1.063±0.049 AU
Eccentricity0.082±0.041
340.94±0.92 d
2454079±36 JD
87±37 º
Semi-amplitude49.3±2.1 m/s
StarHD 192699
Physical characteristics[2]
Mass≥2.096±0.093 MJ


HD 192699 b, also named Khomsa, is an exoplanet located approximately 214 light-years away[3] in the constellation of Aquila, orbiting the star HD 192699. This planet was discovered in April 2007, massing at least 2.5 times the mass of Jupiter (MJ). Despite its orbital distance more than that of Earth, the orbital period is less than a year, because the parent star is more massive than the Sun.[1]

The planet HD 192699 b is named Khomsa. The name was selected in the NameExoWorlds campaign by Tunisia, during the 100th anniversary of the IAU. Khomsa is a palm-shaped amulet that is popular in Tunisia.[4][5]

The existence of this planet around a 1.68 solar mass (M) star provides evidence for the existence of planetary systems around A-type main sequence stars.

  1. ^ a b Cite error: The named reference Johnson2007 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Luhn2019 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  4. ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
  5. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.