AST 2002 Study Guide - Midterm Guide: Summer Triangle, Planetary Nebula, Celestial Equator
Document Summary
The type of constellation that always stays visible in the sky. Imaginary globe where earth is at the center and provides an easy way of describing position of objects in sky. No matter where you are on earth, stars appear to rotate about a point called the _____________ . Longitude, side to side, how far east (right), measure sun form spring (vernal) equinox, uses hours minutes and seconds. Used to measure where a star is in the sky. The day of the year that marks the beginning of spring in the northern hemisphere. Measures how far north or south an object is from the celestial equator. Motion of earth on it"s axis, and around the sun. Also the direction almost everything in our solar system moves. The only things in our solar system that spin clockwise. Point in earth"s orbit nearest to the sun. The point at which the earth is farthest from the sun.
