The Kepler-296 system contains 5 exoplanets. It is located 544.68 light years away from the solar system.
| Mass | 0.5 solar masses |
| Radius | 0.48 solar radiae |
| Temperature | 3740 kelvin |
| Stellar Metallicity | -0.08 decimal exponent |
| Age | 13.9 billion years |
With a mass below 5 Earth masses, a density of 3, and a semi-major axis of 0.079 astronomical units, Kepler-296 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 3.220 Earth masses |
| Density | 3.000 grams per cubic centimeter |
| Radius | 1.610 Earth radiae |
| Semi-major Axis | 0.079 AU |
| Eccentricity | 0.33 |
| Orbital Period | 10.864 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 |
With a mass below 5 Earth masses, a density of 1.2, and a semi-major axis of 0.0521 astronomical units, Kepler-296 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.660 Earth masses |
| Density | 1.200 grams per cubic centimeter |
| Radius | 2.000 Earth radiae |
| Semi-major Axis | 0.0521 AU |
| Eccentricity | 0.33 |
| Orbital Period | 5.842 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-296 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 | 5.020 Earth masses |
| Density | 1.900 grams per cubic centimeter |
| Radius | 2.090 Earth radiae |
| Semi-major Axis | 0.118 AU |
| Eccentricity | 0.33 |
| Orbital Period | 19.850 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 2.957 Earth masses, Kepler-296 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 | 2.960 Earth masses |
| Density | 4.100 grams per cubic centimeter |
| Radius | 1.530 Earth radiae |
| Semi-major Axis | 0.169 AU |
| Eccentricity | 0.33 |
| Orbital Period | 34.142 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 |
With a mass below 5 Earth masses, a density of 3.2, and a semi-major axis of 0.255 astronomical units, Kepler-296 f could, potentially, be an ocean world - a planet with no dry land.
| Mass | 3.890 Earth masses |
| Density | 3.200 grams per cubic centimeter |
| Radius | 1.800 Earth radiae |
| Semi-major Axis | 0.255 AU |
| Eccentricity | 0.33 |
| Orbital Period | 63.336 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 |