The NN Ser system contains 2 exoplanets. It is located 1682.37 light years away from the solar system.
| Mass | 0.54 solar masses |
| Radius | 0.32 solar radiae |
| Temperature | 57000 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, NN Ser c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 2329.600 Earth masses |
| Density | 6.400 grams per cubic centimeter |
| Radius | 12.600 Earth radiae |
| Semi-major Axis | 5.35 AU |
| Eccentricity | 0.08 |
| Orbital Period | 5573.550 days |
| Discovery Method | Eclipse Timing Variations |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2010-10 |
| Reference | Beuermann et al. 2010 |
At more than 50 Earth masses, NN Ser d is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 731.000 Earth masses |
| Density | 1.710 grams per cubic centimeter |
| Radius | 13.300 Earth radiae |
| Semi-major Axis | 3.43 AU |
| Eccentricity | 0.19 |
| Orbital Period | 2883.500 days |
| Discovery Method | Eclipse Timing Variations |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2010-10 |
| Reference | Beuermann et al. 2010 |