K2-157 d

K2-157 d is a Neptunian exoplanet in orbit around the G-type star K2-157.

Astronomers found the planet in 2025 using radial velocity data gathered by the ESPRESSO spectrograph on the Very Large Telescope.

It holds a minimum mass of 23.3 Earth masses and completes one orbit every 66.5 days at a distance of 0.309 astronomical units from its host star.