moon

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Across
  1. 2. 95-percent illuminated moon appears half as bright as a full moon
  2. 3. – the length of time it takes the moon to pass through one of its nodes
  3. 4. would take hundreds of thousands of moons to equal the brightness of the sun
  4. 6. – the length of time it takes the moon to circle the Earth, using the stars as a reference point:
  5. 7. – the length of time it takes the moon to circle the Earth, using the sun as the reference point
  6. 9. actually four kinds of lunar months
Down
  1. 1. the 1950’s the USA considered detonating a nuclear bomb on the Moon
  2. 2. – the length of time it takes the moon to circle the Earth, measured from one perigee
  3. 5. Earth, seen from the moon, also goes through phases
  4. 8. see slightly more than half of the moon from Earth