Kappa Andromedae b
Kappa Andromedae b is visible as the white blob in the upper left. | |
| Orbital characteristics | |
|---|---|
| 57–133AU | |
| Eccentricity | 0.69–0.85 |
| 242–900 y | |
| Inclination | 114.9–140 |
| 60.3–90.5 | |
| 2038.4–2047.9 | |
| 96.6–155.4 | |
| Star | Kappa Andromedae |
| Physical characteristics | |
| 1.42±0.06 RJ | |
| Mass | 17.3±1.8 MJ |
| log g 4.35±0.07 cgs | |
| Temperature | 1,791±68 K |
Kappa Andromedae b is a directly imaged substellar object and likely superjovian-mass planet orbiting Kappa Andromedae, a young B9IV star in the Andromeda constellation, about 170 light-years away. The companion's mass is roughly 13 times the mass of Jupiter. As early history on Kappa And b is filled with debate over whether it is an exoplanet or a brown dwarf, some scientists have broadly described it as a "super-Jupiter" object.