| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | 14 Andromedae | |
| Constellation | Andromeda | |
| Right ascension | (α) | 23h 31m 17.4139s |
| Declination | (δ) | +39° 14′ 10.313″ |
| Apparent magnitude | (mV) | 5.22 |
| Distance | 249.19 ± 13.4 ly (76.40 ± 4.1 pc) |
|
| Spectral type | K0III | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.83 AU (124 Gm) |
| 11 mas | ||
| Periastron | (q) | 0.82 AU (123 Gm) |
| Apastron | (Q) | 0.84 AU (125 Gm) |
| Eccentricity | (e) | 0.0094 |
| Orbital period | (P) | 185.84 d (0.50879 y) |
| Time of periastron | (T0) | 2861.4 ± 1.5 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 4.8 MJ |
| Discovery information | ||
| Discovery date | July 3, 2008 | |
| Discoverer(s) | Sato et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Published | |
| Other designations | ||
|
HD 221345 b
|
||
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
14 Andromeda b or 14 And b is an extrasolar planet 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. This planet was discovered on July 3, 2008 by Sato et al., who discovered the wobbling of 14 Andromedae caused by the planet’s gravity during its orbit with the Doppler spectroscopy.
Coordinates: 23h 31m 17.4139s, +39° 14′ 10.313″