The DMPP-1 system contains 4 exoplanets. It is located 203.97 light years away from the solar system.
| Mass | 1.21 solar masses |
| Radius | 1.26 solar radiae |
| Temperature | 6196 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | 2.01 billion years |
At more than 10 Earth masses, DMPP-1 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 24.270 Earth masses |
| Density | 0.901 grams per cubic centimeter |
| Radius | 5.290 Earth radiae |
| Semi-major Axis | 0.1462 AU |
| Eccentricity | 0.083 |
| Orbital Period | 18.570 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2019-12 |
| Reference | Staab et al. 2020 |
At more than 10 Earth masses, DMPP-1 c is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 9.600 Earth masses |
| Density | 1.840 grams per cubic centimeter |
| Radius | 3.060 Earth radiae |
| Semi-major Axis | 0.0733 AU |
| Eccentricity | 0.057 |
| Orbital Period | 6.584 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2019-12 |
| Reference | Staab et al. 2020 |
At 3.352 Earth masses, DMPP-1 d is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 3.350 Earth masses |
| Density | 4.100 grams per cubic centimeter |
| Radius | 1.650 Earth radiae |
| Semi-major Axis | 0.0422 AU |
| Eccentricity | 0.07 |
| Orbital Period | 2.882 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2019-12 |
| Reference | Staab et al. 2020 |
At 4.131 Earth masses, DMPP-1 e is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 4.130 Earth masses |
| Density | 3.530 grams per cubic centimeter |
| Radius | 1.860 Earth radiae |
| Semi-major Axis | 0.0651 AU |
| Eccentricity | 0.07 |
| Orbital Period | 5.516 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2019-12 |
| Reference | Staab et al. 2020 |