The LHS 1678 system contains 2 exoplanets. It is located 64.83 light years away from the solar system.
| Mass | 0.35 solar masses |
| Radius | 0.33 solar radiae |
| Temperature | 3490 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | 7 billion years |
At less than 1.5 Earth masses, LHS 1678 b is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.350 Earth masses |
| Density | 6.000 grams per cubic centimeter |
| Radius | 0.696 Earth radiae |
| Semi-major Axis | 0.01251 AU |
| Eccentricity | 0.25 |
| Orbital Period | 0.860 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2022-04 |
| Reference | Silverstein et al. 2022 |
At less than 1.5 Earth masses, LHS 1678 c is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 1.400 Earth masses |
| Density | 10.600 grams per cubic centimeter |
| Radius | 0.982 Earth radiae |
| Semi-major Axis | 0.0331 AU |
| Eccentricity | 0.22 |
| Orbital Period | 3.694 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2022-04 |
| Reference | Silverstein et al. 2022 |