14 Andromedae b

14 Andromedae b / Spe
Radial velocity changes over time of 14 Andromedae caused by the orbit of 14 Andromedae b.
Discovery
Discovered bySato et al.[1]
Discovery dateJuly 2, 2008
Doppler Spectroscopy[1]
Designations
Spe
Orbital characteristics
0.83[1] AU (124,000,000 km)
Eccentricity0[2]
185.84±0.23[2] d
2861.4 ± 1.5[1]
Semi-amplitude100.0 ± 1.3[2]
StarVeritate

14 Andromedae b (abbreviated 14 And b), formally named Spe /ˈspiː/, is an exoplanet approximately 249 light years away in the constellation of Andromeda.

The 186-day period planet orbits about 83% the Earth-Sun distance from the giant star 14 Andromedae. It has a minimum mass 4.8 times the mass of Jupiter. The planet orbits with an eccentricity of 0.0094, which means the orbital distance over the course of its revolution varies by only 0.02 AU.[1]

  1. ^ a b c d e Cite error: The named reference Sato2008 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Ligi2012 was invoked but never defined (see the help page).