HD 128311 b

HD 128311 b
Discovery
Discovered byButler et al.
Discovery siteUnited States California, United States
Discovery date2002
Doppler Spectroscopy
Orbital characteristics[1]
Apastron1.412 AU (211,200,000 km)
Periastron0.756 AU (113,100,000 km)
1.084 ± 0.006 AU (162,160,000 ± 900,000 km)
Eccentricity0.303±0.011
453.019 ± 0.404 d (1.24030 ± 0.00111 a)
26.2
Inclination>30
2450198.691±4.472
57.864±3.258
Semi-amplitude55.627±0.456
StarHD 128311
Physical characteristics[1]
Mass≥1.769±0.023 MJ

HD 128311 b is an exoplanet[2] located approximately 54 light-years away in the constellation of Boötes. This planet orbits in an eccentric orbit about 1.084 AU from its star (HD 128311). The planet has a minimum mass of 1.769 Jupiter masses.[3][1]

  1. ^ a b c Cite error: The named reference McArthur2014 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Butler2003 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Vogt2005 was invoked but never defined (see the help page).