The Kepler-181 system contains 2 exoplanets. It is located 1987.21 light years away from the solar system.
| Mass | 0.85 solar masses |
| Radius | 0.75 solar radiae |
| Temperature | 5333 kelvin |
| Stellar Metallicity | -0.023 decimal exponent |
| Age | 0.5 billion years |
At 2.156 Earth masses, Kepler-181 b 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 | 2.150 Earth masses |
| Density | 5.770 grams per cubic centimeter |
| Radius | 1.270 Earth radiae |
| Semi-major Axis | 0.04 AU |
| Eccentricity | 0 |
| Orbital Period | 3.138 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 3.22, and a semi-major axis of 0.049 astronomical units, Kepler-181 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.620 Earth masses |
| Density | 3.220 grams per cubic centimeter |
| Radius | 1.990 Earth radiae |
| Semi-major Axis | 0.049 AU |
| Eccentricity | 0 |
| Orbital Period | 4.302 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 |