Universe crossword; Challenge it!

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Across
  1. 2. round shape with evenly spread stars
  2. 6. tends to be a smaller galaxy
  3. 9. a group of two or more stars
  4. 10. cluster of stars held together by gravity
Down
  1. 1. a group of two stars
  2. 3. the closest galaxy to the milky way
  3. 4. planets and asteroids orbiting our sun
  4. 5. our galaxy
  5. 7. galaxy with arms and a central bulge
  6. 8. star-like