Radial velocity changes over time of 14 Andromedae caused by the orbit of 14 Andromedae b.
Discovery
Discovered by
Sato et al.[1]
Discovery date
July 2, 2008
Detection method
Doppler Spectroscopy[1]
Designations
Alternative designations
Spe
Orbital characteristics
Semi-major axis
0.83[1] AU (124,000,000 km)
Eccentricity
0[2]
Orbital period (sidereal)
185.84±0.23[2] d
Time of periastron
2861.4 ± 1.5[1]
Semi-amplitude
100.0 ± 1.3[2]
Star
14 Andromedae
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]
^ abcdeCite error: The named reference Sato2008 was invoked but never defined (see the help page).
^ abcCite error: The named reference Ligi2012 was invoked but never defined (see the help page).
14Andromedaeb (abbreviated 14 And b), formally named Spe /ˈspiː/, is an exoplanet approximately 249 light years away in the constellation of Andromeda...
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