The HD 81040 system contains 1 exoplanet. It is located 112.31 light years away from the solar system.
| Mass | 1.03 solar masses |
| Radius | 0.91 solar radiae |
| Temperature | 5755 kelvin |
| Stellar Metallicity | -0.04 decimal exponent |
| Age | 0.73 billion years |
At more than 50 Earth masses, HD 81040 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 2172.350 Earth masses |
| Density | 5.830 grams per cubic centimeter |
| Radius | 12.700 Earth radiae |
| Semi-major Axis | 1.988479 AU |
| Eccentricity | 0.556692 |
| Orbital Period | 1005.989 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2006-04 |
| Reference | Sozzetti et al. 2006 |