The Kepler-405 system contains 2 exoplanets. It is located 3473.82 light years away from the solar system.
| Mass | 0.91 solar masses |
| Radius | 0.89 solar radiae |
| Temperature | 5818 kelvin |
| Stellar Metallicity | -0.03 decimal exponent |
| Age | 4.68 billion years |
With a mass below 5 Earth masses, a density of 3.04, and a semi-major axis of 0.095 astronomical units, Kepler-405 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.980 Earth masses |
| Density | 3.040 grams per cubic centimeter |
| Radius | 2.080 Earth radiae |
| Semi-major Axis | 0.095 AU |
| Eccentricity | 0 |
| Orbital Period | 10.614 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-405 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 | 19.600 Earth masses |
| Density | 1.060 grams per cubic centimeter |
| Radius | 4.660 Earth radiae |
| Semi-major Axis | 0.188 AU |
| Eccentricity | 0 |
| Orbital Period | 29.727 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 |