Milkway Kelsi

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Across
  1. 3. hypothetical first generation of stars formed from hydrogen and helium
  2. 6. ancient metal stars formed early in the universe
  3. 7. huge collection of stars, dust, and gas
  4. 8. groups of hundreds to a few thousand young stars
  5. 9. dense, centrally located, mostly old population of stars within a spiral galaxy
  6. 11. nebula interstellar clouds of ionized gas, that emit their own light
  7. 12. massive, extended, nearly spherical region surrounding a galaxy, containing old stars, hot gas, globular clusters
Down
  1. 1. explains the persistence of spirals in galaxies, proposing high density waves
  2. 2. approximately 20% of the night sky absurd by the dust gas, and stars of the milky way
  3. 3. young metal-rich stars found in the spiral arms and disk of galaxies
  4. 4. distance measurement technique using the consistent peak luminosity
  5. 5. nebula cloud of interstellar dust and gas that shines by reflecting the light of nearby stars
  6. 10. seemingly flat figure of a celestial body