1.
the study of the planets
2.
the belief system connected to the zodiac
5.
stars arranged in a pattern
8.
when the hours of day and night are even
9.
when there is the most day or night of the year
10.
things that make their own light
12.
also called a shooting star
13.
a meteor that survived earths atmosphere
14.
a rock floating in space
15.
what the planets do around the sun
18.
a lot of solar systems together
19.
also called the big dipper
20.
also called the little dipper
