The Kepler-603 system contains 3 exoplanets. It is located 5021.60 light years away from the solar system.
| Mass | 1.01 solar masses |
| Radius | 1.01 solar radiae |
| Temperature | 5808 kelvin |
| Stellar Metallicity | 0.03 decimal exponent |
| Age | 4.37 billion years |
At more than 10 Earth masses, Kepler-603 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 | 7.510 Earth masses |
| Density | 2.220 grams per cubic centimeter |
| Radius | 2.650 Earth radiae |
| Semi-major Axis | 0.1502 AU |
| Eccentricity | 0 |
| Orbital Period | 21.054 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2016-05 |
| Reference | Morton et al. 2016 |
At more than 10 Earth masses, Kepler-603 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 | 34.500 Earth masses |
| Density | 0.690 grams per cubic centimeter |
| Radius | 6.500 Earth radiae |
| Semi-major Axis | 0.5001 AU |
| Eccentricity | 0 |
| Orbital Period | 127.908 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2016-05 |
| Reference | Morton et al. 2016 |
At 2.302 Earth masses, Kepler-603 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 | 2.300 Earth masses |
| Density | 5.500 grams per cubic centimeter |
| Radius | 1.320 Earth radiae |
| Semi-major Axis | 0.0666 AU |
| Eccentricity | 0 |
| Orbital Period | 6.217 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2016-05 |
| Reference | Morton et al. 2016 |