Earth Sciences 1086F/G Lecture Notes - Lecture 5: Hubble Space Telescope, Small Solar System Body, Kuiper Belt
14 May 2020
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Gathers up light and allows to examine image at focal position. *magnification done by smaller lens known as eyepiece. Any telescope on earth has to make compensation for earth"s atmosphere and distortions. Refractors: collect light by means of glass lens. Reflectors: collect light with curved mirror: hubble space telescope (hst): orbits above earth. Escape velocity: minimum velocity needed for an object to overcome earth"s gravitational attraction. Divide objects of the solar system into planets, satillites, asteroids and comets. Terrestrial plants: 4 closest to the sun that are dense made mostly of rock/metal. Gas giants: huge, low density composed of hydrogen and helium, surround by rings. B/w the 2 is asteroid belt, largest object in belt is ceres: past pluto is kuiper belt consist of icy bodies. Jupiter initially migrate inward, being pulled toward the sun as it does so it pushes rocky planetestimals inward to create mini-disk from which terrestrial planets were formed.
