Moon
Stars
100
flat plains
seas or maria
100
constellation containing Polaris
Little Dipper
200
plain Apollo 11 astronauts first set foot on
Sea of Tranquility
200
constellation containing Sirius
Big Dog
300
bulging phase
gibbous
300
star group
constellation
400
whole moon
full moon
400
star in Lion constellation
Regulus
500
left half
third quarter
500
contains Big Dipper
Great Bear
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