Astronomy 1021 Study Guide - Comprehensive Final Exam Guide - Sun, Earth, Orbit

• School: Western University
• Department: Astronomy
• Course: Astronomy 1021
• Professor: Robert Cockcroft

Document Summary

Part of the summer triangle, with denab and altair. Jupiter, saturn, uranus, neptune, earth, venus, mars, mercury, moon, pluto. Pluto is not considered a planet because they found other planets around it with similar characteristics and determined it was part of an astroid belt rather then a planet. If they considered pluto a planet they would have consider several other planets as well. 385 000 km between the moon and earth. Arrange the planets in order of how close they are to the sun. Mercury, venus, earth, mars, jupiter, saturn, uranus, neptune, pluto. The average distance between the sun and earth is 150 million km. 7. 5 times around the earth in 1 second. Fastest speed anything can go in the universe. A light year is a distance the distance that light can travel in one year. Light year= 3 x 10^8 m/s x 1 year. Light years also gives you the travel time it took light to cross that distance.