1st quarter moon occurs today. Celebrate Pi day by finding the moon’s circumference! You can find the moon’s circumference by multiplying the moon’s diameter (2000 miles) by Pi (3.14159).
Astronomy Fact of the Day: March 14, 2019

1st quarter moon occurs today. Celebrate Pi day by finding the moon’s circumference! You can find the moon’s circumference by multiplying the moon’s diameter (2000 miles) by Pi (3.14159).