The Kepler-523 system contains 1 exoplanet. It is located 826.14 light years away from the solar system.
| Mass | 0.93 solar masses | 
| Radius | 0.86 solar radiae | 
| Temperature | 5515 kelvin | 
| Stellar Metallicity | -0.03 decimal exponent | 
| Age | 2.45 billion years | 
With a mass below 5 Earth masses, a density of 3.28, and a semi-major axis of 0.0606 astronomical units, Kepler-523 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.500 Earth masses | 
| Density | 3.280 grams per cubic centimeter | 
| Radius | 1.960 Earth radiae | 
| Semi-major Axis | 0.0606 AU | 
| Eccentricity | 0 | 
| Orbital Period | 5.836 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 |