HD 187123 b

HD 187123 b
Discovery
Discovered byButler, Marcy,
Vogt, Apps et al.
Discovery siteCalifornia, United States
Discovery date9 September 1998
radial velocity
Orbital characteristics
0.04213±0.00034 AU
Eccentricity0.0093±0.0046[1]
3.0965828±0.0000043[1] d
2454342.87±0.30[1]
360±200[1]
Semi-amplitude68.91±0.36[1]
StarHD 187123

HD 187123 b is a typical "hot Jupiter" located approximately 150 light-years away in the constellation of Cygnus, orbiting the star HD 187123. It has a mass about half that of Jupiter and it orbits in a very tight, round orbit around the star every three days.[2][3]

The star has also been monitored for possible transits by the planet, but none was found.

The presence of water has been detected in the atmosphere of HD 187123 b with high confidence.[4]

  1. ^ a b c d e Cite error: The named reference Feng2015 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Butler1998 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Wright2009 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Buzard_et_al_2020 was invoked but never defined (see the help page).