The Kepler-449 system contains 2 exoplanets. It is located 789.13 light years away from the solar system.
| Mass | 1.02 solar masses |
| Radius | 1.47 solar radiae |
| Temperature | 5649.18 kelvin |
| Stellar Metallicity | -0.165 decimal exponent |
| Age | 9.77 billion years |
With a mass below 5 Earth masses, a density of 3.09, and a semi-major axis of 0.1027 astronomical units, Kepler-449 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.880 Earth masses |
| Density | 3.090 grams per cubic centimeter |
| Radius | 2.056 Earth radiae |
| Semi-major Axis | 0.1027 AU |
| Eccentricity | 0.03 |
| Orbital Period | 12.582 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-08 |
| Reference | Van Eylen & Albrecht 2015 |
At more than 10 Earth masses, Kepler-449 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 | 8.070 Earth masses |
| Density | 2.100 grams per cubic centimeter |
| Radius | 2.764 Earth radiae |
| Semi-major Axis | 0.1979 AU |
| Eccentricity | 0.05 |
| Orbital Period | 33.673 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-08 |
| Reference | Van Eylen & Albrecht 2015 |