The HD 142 system contains 3 exoplanets. It is located 85.40 light years away from the solar system.
| Mass | 1.21 solar masses |
| Radius | 1.41 solar radiae |
| Temperature | 6273 kelvin |
| Stellar Metallicity | 0.106 decimal exponent |
| Age | 3.12 billion years |
At more than 50 Earth masses, HD 142 d is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 81.628 Earth masses |
| Density | 0.356 grams per cubic centimeter |
| Radius | 10.800 Earth radiae |
| Semi-major Axis | 0.474065 AU |
| Eccentricity | 0.129711 |
| Orbital Period | 108.453 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2022-09 |
| Reference | Feng et al. 2022 |
At more than 50 Earth masses, HD 142 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 395.518 Earth masses |
| Density | 0.845 grams per cubic centimeter |
| Radius | 13.700 Earth radiae |
| Semi-major Axis | 1.038376 AU |
| Eccentricity | 0.157528 |
| Orbital Period | 351.434 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Anglo-Australian Telescope |
| Discovery Telescope | 3.9 m Anglo-Australian Telescope |
| Discovery Instrument | UCLES Spectrograph |
| Discovery Date | 2002-05 |
| Reference | Tinney et al. 2002 |
At more than 50 Earth masses, HD 142 c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 3521.338 Earth masses |
| Density | 10.100 grams per cubic centimeter |
| Radius | 12.400 Earth radiae |
| Semi-major Axis | 9.815941 AU |
| Eccentricity | 0.276797 |
| Orbital Period | 10159.643 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Anglo-Australian Telescope |
| Discovery Telescope | 3.9 m Anglo-Australian Telescope |
| Discovery Instrument | UCLES Spectrograph |
| Discovery Date | 2012-07 |
| Reference | Wittenmyer et al. 2012 |