The Universe Isaac McAvoy

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Across
  1. 2. a large grouping of stars in space
  2. 4. shaped galaxy- galaxy with a center bulge or bar
  3. 8. insturment that collects light or other electromagneticradiation
  4. 10. all space and the matter space contains
  5. 11. self luminous celestil body
  6. 12. year- unit of length equal to the distance that light travels in one year
Down
  1. 1. center- rotational center of huge galaxy such as the milky way
  2. 3. -Russell diagram-plot of the surface tmeperature
  3. 5. model- representation
  4. 6. large cloud of gas and dust in interstellar space the location
  5. 7. arms- areas that spreed out from the center of a spiral galaxy
  6. 9. nova- the death of a large star by explosion
  7. 11. of light- how fast light travels 300,000km/sec