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Across
  1. 3. the diameter of the Virgo Cluster (abbreviated)
  2. 4. M100 is this type of galaxy
  3. 7. Virgo supercluster belongs to this larger celestial group
  4. 9. Virgo cluster belongs to this larger celestial group
  5. 10. Solar system belongs to this larger celestial group
  6. 12. Messier 87 galaxy type
  7. 13. the largest cluster in the Virgo supercluster
  8. 14. Virgo Supercluster shape, similar to our galaxy
  9. 16. discovered Virgo cluster 1781
  10. 18. Milky way belongs to this larger celestial group
  11. 19. local superclusters belongs to this larger celestial group inside 14 bly
Down
  1. 1. 90% of the galaxies in the VC and VSC are of this type
  2. 2. Type 1A is one of these
  3. 5. M77 is one of these (3 words)
  4. 6. Earth belongs to this larger celestial group
  5. 8. alternate name of Virgo Supercluster
  6. 11. visible universe belongs to this larger celestial group beyond 14 bly
  7. 15. possibly larger than the known universe?
  8. 17. aka Messier 87