The HD 27442 system contains 1 exoplanet. It is located 59.59 light years away from the solar system.
| Mass | 1.23 solar masses |
| Radius | 3.18 solar radiae |
| Temperature | 4846 kelvin |
| Stellar Metallicity | 0.42 decimal exponent |
| Age | 10 billion years |
At more than 50 Earth masses, HD 27442 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 495.800 Earth masses |
| Density | 1.110 grams per cubic centimeter |
| Radius | 13.500 Earth radiae |
| Semi-major Axis | 1.271 AU |
| Eccentricity | 0.06 |
| Orbital Period | 428.100 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Anglo-Australian Telescope |
| Discovery Telescope | 3.9 m Anglo-Australian Telescope |
| Discovery Instrument | UCLES Spectrograph |
| Discovery Date | 2001-07 |
| Reference | Butler et al. 2001 |