solar system

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Across
  1. 3. all the planets and galaxies all together
  2. 8. known as Messier 31, M31, or NGC 224
  3. 9. is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers, or 5.88 trillion miles
  4. 10. a dense central bulge lies at the centre of a rotating disc, which features a spiral structure that originates at the bulge.
Down
  1. 1. a group of stars
  2. 2. this galaxy a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image
  3. 4. a galaxy that does not have a distinct Regular shape,
  4. 5. this galaxy is shaped like a fried egg
  5. 6. a systems of star and bound together with gravity
  6. 7. way the galaxy we live in