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Scientific Notation System of recording very large or very small numbers by using powers of 10
the diameter of the moon compared to the earth? one fourth the size
Astronomical Unit (AU) average distance from earth to sun: it is: 1.5 x 10^8
solar system consists of the Sun, its family of planets and some smaller bodies like comets, moons, asteroids
Planets Non-luminous bodies that shine by reflecting sunlight. ex: mercury, earth, venus
Star Self luminous ball of hot gas that generates its own energy. Ex, Sun
How much bigger is the Sun than the Earth 110 times larger
Light-year unit of distance equal to the distance light travels in one year
Stars form from... thin clouds of gas that fill the spaces between the stars
Galaxy great cloud of stars, gas, dust, star clusters, and nebulae bound together by the combined gravity of all the matter
Milky way our galaxy. The hazy band of light that circles our sky, produced by the glow of our galaxy
Supercluster a cluster of galaxy clusters
Created by: 1622715967