The TOI-540 system contains 1 exoplanet. It is located 45.67 light years away from the solar system.
| Mass | 0.16 solar masses |
| Radius | 0.19 solar radiae |
| Temperature | 3216 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | 1.1 billion years |
At less than 1.5 Earth masses, TOI-540 b is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.674 Earth masses |
| Density | 5.030 grams per cubic centimeter |
| Radius | 0.903 Earth radiae |
| Semi-major Axis | 0.01223 AU |
| Eccentricity | 0 |
| Orbital Period | 1.239 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 | 2021-01 |
| Reference | Ment et al. 2021 |