| Discovery | |
|---|---|
| Discovered by | Niedzielski et al. |
| Discovery site | La Silla Observatory |
| Discovery date | June 10, 2009 |
| radial velocity | |
| Orbital characteristics | |
| Apastron | 1.53 AU (229,000,000 km) |
| Periastron | 1.13 AU (169,000,000 km) |
| 1.33 AU (199,000,000 km) | |
| Eccentricity | 0.15 ± 0.02 |
| 501.75 ± 2.33 d 1.3737 ± 0.0064 y | |
| 54486.73 ± 10.93 | |
| 277.49 ± 7.77 | |
| Star | HD 240210 |
HD 240210 b is a 6.9 Jupiter-mass exoplanet discovered on June 10, 2009 by Niedzielski et al. using the Hobby-Eberly Telescope.[1] It orbits the K3 giant star HD 240210 in the constellation of Cassiopeia. Its average orbital separation is at 1.33 Astronomical Units away from its star with a year of 501.75 days.