PHYS 1901 is one of two introductory courses on astronomy offered by Carleton (the otherbeing PHYS 1902: From Our Stars to the Cosmos). PHYS 1901 focuses on the solar system andplanetary phenomena. By the end of this course you will understand the motions of the sky, howtelescopes work, the characteristics of the planets, how the solar system formed, and the methodsastronomers and scientists use to learn about our neighbourhood in the Universe. I hope that youwill gain a deeper appreciation of science and astronomy, and have fun learning!