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Astronomy Unit 8th Grade

Three types of galaxies Spiral, Irregular, and Elliptical
The star of our solar system is located where In the spiral arms
Two types of planets Gaseous and solid and terrestrial and rocky surface
What a moon does around a planet Orbit
Asteroids are between what? Mars and Jupiter
Explain the parallax shift. Stars moving away from each other
What decreases in a star as it gets older? Hydrogen
What measurement is used in space? Light Year
What is caused by gravity? Tides and planetary orbits
How many days does it take for the moon to rotate on it's axis? 27 days
What is the longest day in the Norther Hemisphere? June 21st
What two things control gravity? Mass and distance
How many days does it take for the moon to complete one cycle of phases? 29.5 days
What does the Earth do as it evolves around the Sun? It rotates on its axis
Layer of the sun that we see from Earth. Photosphere
Prominences Huge arch-like loops from the photosphere
Reflecting Telescope Uses mirrors to focus light rays to produce images.
Created by: TonyTimteSwain
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