The Kepler-281 system contains 3 exoplanets. It is located 5692.89 light years away from the solar system.
| Mass | 0.95 solar masses |
| Radius | 0.9 solar radiae |
| Temperature | 5723 kelvin |
| Stellar Metallicity | 0.02 decimal exponent |
| Age | 0.6 billion years |
At more than 10 Earth masses, Kepler-281 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 | 8.350 Earth masses |
| Density | 2.050 grams per cubic centimeter |
| Radius | 2.820 Earth radiae |
| Semi-major Axis | 0.117 AU |
| Eccentricity | 0 |
| Orbital Period | 14.646 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |
At more than 10 Earth masses, Kepler-281 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 | 24.400 Earth masses |
| Density | 0.896 grams per cubic centimeter |
| Radius | 5.310 Earth radiae |
| Semi-major Axis | 0.215 AU |
| Eccentricity | 0 |
| Orbital Period | 36.337 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |
At more than 10 Earth masses, Kepler-281 d 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 | 29.500 Earth masses |
| Density | 0.774 grams per cubic centimeter |
| Radius | 5.937 Earth radiae |
| Semi-major Axis | 0.5456 AU |
| Eccentricity | 0 |
| Orbital Period | 148.272 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2022-02 |
| Reference | Valizadegan et al. 2022 |