K2-146b
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| File:K2-146b.jpg Size comparison of the planet K2-146b (artistic concept) with Earth | |
| Discovery | |
|---|---|
| Discovery site | Kepler Space Observatory |
| Transit | |
| Orbital characteristics | |
| Star | K2-146 |
K2-146b is a Neptune-like exoplanet discovered in 2018 by the Kepler Space Telescope that orbits a low-mass M-type star in the constellation Cancer.[1][2] Its host star, K2-146, is orbited by another planet named K2-146c.[3] The planet orbits K2-146 at a distance of 0.0248 AU (3,710,000 km),[3] fifteen times closer than Mercury is to the Sun (0.3871 AU[4]). Thus, it orbits very rapidly, with one year lasting just 2.64 days (63 hours),[5] and is far too hot to be habitable, with an equilibrium temperature of 534 K (261 °C; 502 °F).[6]
References
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