space assingment

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Across
  1. 1. a vast collection of stars
  2. 6. how much an orbit differs from circular
  3. 8. light cannot escape it's gravity
  4. 10. average distance from the sun to earth
  5. 11. massive ball of gas
Down
  1. 2. distance light trvels in one year
  2. 3. a super massive black hole
  3. 4. the point in the sky that is directly overhead
  4. 5. device that supports telescope
  5. 7. a distinctive pattern of stars
  6. 9. edge of a celestial objects visible disk