ASTRONOMICAL TERMS

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Across
  1. 1. the path of the earth around the sun
  2. 3. are satillites of stars
  3. 7. the name given to a collision between two objects
  4. 8. the satellites of planets
  5. 9. a group of stars which appear to form a pattern or picture in the night sky
  6. 11. a measure of a body's brightness
Down
  1. 2. a region in space that has such an enormous force of gravity that no light can escape
  2. 4. huge spheres of burning gas, the source of light and heat
  3. 5. pieces of rock or metal that orbit the sun which are too small to be planets
  4. 6. a person who travels and works in space
  5. 10. our closest star
  6. 12. the force that holds us to the earth