K2-315b

K2-315b is an exoplanet located 185.3 light years away from Earth.[1][2] It orbits the red dwarf K2-315.

K2-315b
Discovery
Discovered byKepler space telescope
Discovery date2020
Transit
Orbital characteristics
25.72±0.1
3.1443189±0.0000049
Inclination88.74±0.05
Physical characteristics
Mean radius
0.95±0.0580 R⨁
Temperature460±5 K

    Discovery

    K2-315b was discovered in 2020 by astronomers in an observatory using the Kepler space telescope.[3] It is also nicknamed the "Pi Planet" because it takes approximately 3.14 days to orbit the host star.[4]

    Physical properties

    The planet is thought to be a small rocky planet, even though composition is unknown.[4] Since it orbits very close to its star, it is too hot to host life, due to it having a scorching temperature of 450 K. Not much is known about it because it was just discovered, but it is similar to Earth, having a radius 0.95 times of Earth.,[5] very similar to Venus.

    References
    1. "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. NASA. Retrieved 2020-10-22.
    2. September 2020, Mike Wall 22. "'Pi planet' alien world takes 3.14 days to orbit its star". Space.com. Retrieved 2020-10-22.
    3. Niraula, Prajwal; Julien de Wit; Rackham, Benjamin V.; Ducrot, Elsa; Burdanov, Artem; Crossfield, Ian J. M.; Valerie Van Grootel; Murray, Catriona; Garcia, Lionel J.; Alonso, Roi; Beard, Corey; Yilen Gomez Maqueo Chew; Delrez, Laetitia; Demory, Brice-Olivier; Fulton, Benjamin J.; Gillon, Michael; Gunther, Maximilian N.; Howard, Andrew W.; Issacson, Howard; Jehin, Emmanuel; Pedersen, Peter P.; Pozuelos, Francisco J.; Queloz, Didier; Rebolo-Lopez, Rafael; Sairam, Lalitha; Sebastian, Daniel; Thompson, Samantha; Triaud, Amaury H. M. J. (2020). "$π$ Earth: A 3.14-day Earth-sized Planet from $\textit{K2}$'s Kitchen Served Warm by the SPECULOOS Team". arXiv:2006.07308 [astro-ph.EP].
    4. Starr, Michelle. "Astronomers Discover 'Pi Earth' Exoplanet Orbits Its Star Once Every 3.14 Days". ScienceAlert. Retrieved 2020-10-21.
    5. "Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 2020-10-21.


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