The 11 Com system contains 1 exoplanet. It is located 303.93 light years away from the solar system.
| Mass | 2.7 solar masses |
| Radius | 19 solar radiae |
| Temperature | 4742 kelvin |
| Stellar Metallicity | -0.35 decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, 11 Com b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 6165.600 Earth masses |
| Density | 19.100 grams per cubic centimeter |
| Radius | 12.100 Earth radiae |
| Semi-major Axis | 1.29 AU |
| Eccentricity | 0.231 |
| Orbital Period | 326.030 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Xinglong Station |
| Discovery Telescope | 2.16 m Telescope |
| Discovery Instrument | Coude Echelle Spectrograph |
| Discovery Date | 2008-01 |
| Reference | Liu et al. 2008 |