AS101 Chapter Notes - Chapter 1: Spiral Galaxy, Big Bang, Cosmic Calendar
Document Summary
Field of view the area visable in an image, usually given as the diaeter of the region. Scientific notation the system of recording very large or small numbers by using powers of. 1. 1from solar system to galaxy to universe: cern is home of large hadron collier, largest particle accelerator in operation, astronomy is the study of large numbers. Astronomical unit average distance from the earth to the sun. Solar system the sun and its planets, asteroids, comets, etc. Planet a non-luminous body in orbit around a star, large enough to be spherical and to have cleared its orbital zone of other objects. Galaxy a large system of stars, star clusters, gas, dust, and nebulae orbiting a common centre of mass. Milky way the hazy band of light that circles our sky, produced by the glow of our galaxy. Milky way galaxy the spiral galaxy containing our sun, visible in the night sky as the milky.
