The HD 240237 system contains 1 exoplanet. It is located 3044.27 light years away from the solar system.
| Mass | 8.76 solar masses |
| Radius | 71.23 solar radiae |
| Temperature | 3926 kelvin |
| Stellar Metallicity | -0.25 decimal exponent |
| Age | 4.42 billion years |
At more than 50 Earth masses, HD 240237 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 5050.319 Earth masses |
| Density | 15.300 grams per cubic centimeter |
| Radius | 12.200 Earth radiae |
| Semi-major Axis | 1.92 AU |
| Eccentricity | 0.4 |
| Orbital Period | 745.700 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | McDonald Observatory |
| Discovery Telescope | 9.2 m Hobby-Eberly Telescope |
| Discovery Instrument | High Resolution Spectrograph |
| Discovery Date | 2012-01 |
| Reference | Gettel et al. 2012 |