astronomy notes for final exam- interplanetary matter

astronomy notes for final exam- interplanetary matter -...

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Interplanetary matter: Small stuff between the planets Includes: Gas (atoms, molecules) from sun mostly Dust grains Other solid materials  solar nebula leftover Greatest density: asteroid belt, Kuiper/oort clouds Can be beautiful Can be dangerous Between mars and Jupiter  asteroid belt Keeper belt  out part of solar system beyond Neptune   Asteroids: rocky bodies, inner solar system,  (D>50m) (between mars and Jupiter) I km thing is roughly 1 trillion dollars ( a million million dollars) .50 per km Comets: effluent from icy bodies, when enter inner solar system (D>50m)
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Unformatted text preview: Comets: effluent from icy bodies, when enter inner solar system (D>50m) Coma is the head Edmund halley computed orbit of comet and had properties of orbiting object in elliptical orbit, predicted comet would return in 1759, clear comets are astronomical bodies not supernatural, because they have elliptical orbits they have interesting properties: most of their time in the outer part of their orbit (far from the sun) Meteoroids: rocky or icy bodies (D<50 m)...
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