K2-157 d
Neptunian exoplanet exoplanet orbiting K2-157
From Wikipedia, the free encyclopedia
K2-157 d is a Neptunian exoplanet in orbit around the G-type star K2-157.[1]
| Discovery[1] | |
|---|---|
| Discovered by | Castro-González et al |
| Discovery date | 2025 |
| Radial velocity | |
| Orbital characteristics | |
| 0.3090 AU | |
| Eccentricity | <0.5 |
| 66.50 d | |
| Star | K2-157 |
| Physical characteristics | |
| Mass | 23.3 ± 2.5 Earth masses |
Astronomers found the planet in 2025 using radial velocity data gathered by the ESPRESSO spectrograph on the Very Large Telescope.[2]
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.[3][1]
