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Astronomy (2)

SOL Review

QuestionAnswer
What is a light-year? The distance light travels in one year
What are galaxies? Collections of billions of stars
What is the Big Band Theory? The most widely accepted theory for how the universe was created
What is the Hertzsprung? A diagram that shows the relationship between absolute magnitude and the surface temperature of starts
How much more energy do blue giant stars put out than the sun? 10,000 times more
What do stars become when they die? Black holes
What are distances in our universe measured in? Light years
What is the most common unit of measurement used in astronomy? Light years
How do we get most of our information about the galaxy? Through satellites
What is a solar-nebula? A huge, vast cloud of ice, gas and dust
Created by: hcps-cannonjk
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