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K2-18b, also known as EPIC 201912552 b, is an exoplanet orbiting the red dwarf K2-18, located 124 light-years (38 pc) away from Earth. The planet is a sub-Neptune about 2.6 times the radius of Earth, with a 33-day orbit within the star's habitable zone. This means it receives about a similar amount of starlight as the Earth receives from the Sun.
K2-18, also known as EPIC 201912552, is a red dwarf star with two planetary companions located 124 light-years (38 parsecs) [4] from Earth, in the constellation of Leo. Its name is because it was discovered by the K2 Mission , which extended the mission of the Kepler Space Telescope after failure of two of its reaction wheels.
The first Satcom satellite, Satcom 1, was launched on 13 December 1975. The last satellite, Satcom K2, was placed into orbit on 27 November 1985 and was de-orbited in February 2002. Satcom was first superseded and then replaced by the GE series of satellites. The Satcom system passed to General Electric with its purchase of RCA in 1986.
K2-315 is a star in the southern zodiac constellation Libra. [11] It has an apparent magnitude of 17.67, [ 9 ] requiring a powerful telescope to be seen. The star is relatively close at a distance of 185 light years [ 8 ] but is receding with a radial velocity of 6.25 km/s .
K2, at 8,611 metres (28,251 ft) above sea level, is the second-highest mountain on Earth, after Mount Everest at 8,849 metres (29,032 ft). [5] It lies in the Karakoram range, partially in the Gilgit-Baltistan region of Pakistan-administered Kashmir and partially in the China-administered Trans-Karakoram Tract in the Taxkorgan Tajik Autonomous County of Xinjiang.
K2-22b (also known as EPIC 201637175 b) is an exoplanet 801 ly from Earth, rapidly orbiting the red dwarf K2-22 with an orbital period of 9.145872 hours. [2] It has a mass of 0.02 M E and a radius below 0.71 M E. [3] The planet was not detected in the K2 photometry. K2 photometry reveals the presence of an anomalous light curve consistent with ...
K2-38b, also designated EPIC 204221263 b, is a massive rocky exoplanet closely orbiting a Sun-like star and is one of the densest planets ever found.Discovered in 2016 by Crossfield et al. and later characterized by Sinukoff et al., K2-38b is a rocky super-Earth about 55% larger than Earth (nearly 20,000 km wide) but about 12 times more massive (around 7.2*10^25 kg, a bit less than Uranus ...
The planet was found using data from the NASA Kepler Space Telescope, K2, and the Transiting Exoplanet Survey Satellite.K2-415b was discovered in February 2023. [2]K2-415b is approximately 1.015 times the radius of Earth and is less than 7.5 times the mass of Earth.