Moon orbits the earth

  • Thread starter Howers
  • Start date
  • #1
Howers
447
3
I had no idea it took a month for the moon to orbit the earth. I thought it happened daily, and thats what gave us night. How do we get night?
 

Answers and Replies

  • #2
chroot
Staff Emeritus
Science Advisor
Gold Member
10,275
40
The Earth rotates in 24 hours. (Actually, a little less, but that's unimportant here.) One side of the Earth is exposed to sunlight at any given time; the other side is in darkness. Thus, we have night and day.

The Moon revolves around the Earth once every 28 days, and is unrelated to the Earth's day/night cycle. If it revolved around the Earth once per day, you'd see the Moon's phase go from full to new and back to full every single day.

- Warren
 
  • #3
neutrino
2,091
2
One more thing: You can see the Moon during daytime.
 
  • #4
Ivan Seeking
Staff Emeritus
Science Advisor
Gold Member
8,010
1,004
Thread title corrected.
 

Suggested for: Moon orbits the earth

Replies
2
Views
283
  • Last Post
Replies
1
Views
506
  • Last Post
Replies
14
Views
3K
  • Last Post
Replies
15
Views
696
  • Last Post
Replies
3
Views
308
  • Last Post
Replies
3
Views
464
  • Last Post
Replies
2
Views
131
Stargazing Sun, Moon and Earth
  • Last Post
Replies
7
Views
1K
  • Last Post
Replies
13
Views
941
  • Last Post
Replies
2
Views
668
Top