The Kepler-444 system contains 5 exoplanets. It is located 118.85 light years away from the solar system.
| Mass | 0.76 solar masses |
| Radius | 0.75 solar radiae |
| Temperature | 5046 kelvin |
| Stellar Metallicity | -0.55 decimal exponent |
| Age | 11.23 billion years |
With a mass below 5 Earth masses, a density of 3.14, and a semi-major axis of 0.04178 astronomical units, Kepler-444 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 0.037 Earth masses |
| Density | 3.140 grams per cubic centimeter |
| Radius | 0.403 Earth radiae |
| Semi-major Axis | 0.04178 AU |
| Eccentricity | 0.16 |
| Orbital Period | 3.600 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Campante et al. 2015 |
At less than 1.5 Earth masses, Kepler-444 c is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.079 Earth masses |
| Density | 3.550 grams per cubic centimeter |
| Radius | 0.497 Earth radiae |
| Semi-major Axis | 0.04881 AU |
| Eccentricity | 0.31 |
| Orbital Period | 4.546 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Campante et al. 2015 |
At less than 1.5 Earth masses, Kepler-444 d is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.200 Earth masses |
| Density | 7.900 grams per cubic centimeter |
| Radius | 0.530 Earth radiae |
| Semi-major Axis | 0.06 AU |
| Eccentricity | 0.18 |
| Orbital Period | 6.189 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Campante et al. 2015 |
At less than 1.5 Earth masses, Kepler-444 e is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.100 Earth masses |
| Density | 4.800 grams per cubic centimeter |
| Radius | 0.546 Earth radiae |
| Semi-major Axis | 0.0696 AU |
| Eccentricity | 0.1 |
| Orbital Period | 7.743 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Campante et al. 2015 |
At less than 1.5 Earth masses, Kepler-444 f is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.332 Earth masses |
| Density | 4.480 grams per cubic centimeter |
| Radius | 0.741 Earth radiae |
| Semi-major Axis | 0.0811 AU |
| Eccentricity | 0.29 |
| Orbital Period | 9.740 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2015-02 |
| Reference | Campante et al. 2015 |