NATS 1745 Study Guide - Axial Tilt, Heel Stone, Positional Notation
Document Summary
There wasn"t the same understanding that these were other worlds. Astronomy before the telescope was about what kind of motions there are in the sky. Telescope is a recent discovery; humans have watched the night sky thousands of years before. Everything moves, orbits amongst each other (moon, sun) it was hard to understand these motions when they (early astronomers) believed that the earth was standing still. Within the solar system up until isaac newton (late 1700"s) most of what were observing is the motions of the sky moons constellations etc. All of these individual motions added up cause what we see in the sky, not one single motion. The language pretends the sun is in motion, we still say the sun rises even though it"s the earth that is moving not the sun. It spins on its axis (causes day, night)