Constellations&Changing views of the night sky

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Across
  1. 2. Certain patterns of the stars were used for___.(starts with N)
  2. 5. The Big Dipper is a part of this constellation(no blanks between words)
  3. 6. What constellation you see
  4. 7. a group of stars that appears to form a patter in the night sky
Down
  1. 1. a smaller group of stars within a constellation
  2. 3. Ancient Greeks saw a hunter in this constellation
  3. 4. It is internationally used to predict a person's personality in astrology.