astronomy ashleigh meadors

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Across
  1. 2. an imaginary line that passes through a planets center
  2. 3. an object the orbits a star
  3. 8. attracts all objects toward each other
  4. 9. the different shapes of the moon you see from the earth
  5. 12. one year
  6. 13. when the sun reaches its greatest distance north or south of the equator
  7. 15. the amount of matter in an object
Down
  1. 1. the measure of the force of gravity on an object
  2. 4. when neither hemisphere is tilted toward or away from the sun
  3. 5. a ball of hot gas, primarily hydrogen and helium then undergoes nuclear fusion
  4. 6. a system of organizing time
  5. 7. A streak of light the sky produced by the burning of a meteoroid in earths atmosphere
  6. 10. an object that orbits a planet
  7. 11. one day
  8. 14. a loose collection of ice and dust that orbits the sun, typically in along narrow orbit.