Describe the Motion of the Planets Across the Sky
A hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eyeThe term Milky Way is a translation of the Latin via lactea from the Greek γαλακτικός κύκλος galaktikos kýklos meaning milky circle. Prograde motion is where a planet or moon or other solar system body rotates or orbits in a counterclockwise direction as seen from above the Suns north pole. Understanding Astronomy The Planets While the terms direct and prograde are equivalent in this context the former is the traditional term in astronomy. . 4-12 Meet the Planets. We live in the Milky Way a barred spiral galaxy 100000 light-years across. By the end of grade 5. Earth the Moon and most other planets and moons have prograde rotations and orbits. So we see the entire system edge-on--the entire pancake occupies one line or maybe a narrow strip cutting across the sky known as the. Start studying PH 109 Astronomy...