AST101H1 Lecture Notes - Semi-Major And Semi-Minor Axes
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AST101H1 Full Course Notes
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Newton"s law of gravity: the force of gravity between masses m and m is equal to the product of their masses, times the gravitational constant g, divided by the square of the distance between them. Mass: the total number of atoms something has. Because the moon is moving perpendicular to the force of gravity. An object moving under the influence of gravity alone is free fall. Escape speed is the speed at which something has to be thrown to escape earth"s gravity. Tycho brahe charted the position of all the planets. Kepler, was his student and used tycho"s data to determine the laws of planetary motion. Keplers first law: all planets orbit the sun in an elliptical shape. An ellipse is a circle with a stretched diameter. Every planet orbits 1 point (sun). (the sun at one focus", which is not in the center)