space crossword

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Across
  1. 2. the distance that light travels in one year
  2. 4. the imaginary north-south line that passes directly overhead
  3. 7. happens two times per year
  4. 8. a ball of ice and rock debris that orbits around the sun in a long ellipse.
  5. 9. a brief streak of light caused by a small piece of solid matter entering earths atmosphere
  6. 10. the edge of a celestial object's visible disk
Down
  1. 1. a glow in the night sky caused by artificial light
  2. 3. the measure of how much an orbit deviates from being circular
  3. 5. a vast collection of stars, gas, and dust containing billions of stars
  4. 6. latin for cloud
  5. 7. the sun