Section 2

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Across
  1. 2. The brightness the star would have if it were at a standard distance from the earth (2 words)
  2. 3. A giant flat structure that contains hundreds of billions of stars.
  3. 5. Is the apparent change in position of an object when you look at it from different places
  4. 6. When the stars in the h and r diagram form a diagonal line (2 words)
  5. 7. All of space and everything in it
Down
  1. 1. Very large stars (2 words)
  2. 2. Brightness of a star seen from earth (2 words)
  3. 4. The distance that light travels in one year (2 words)