How many LaGrange points does the Earth/Moon system have?

  • #1
18,145
7,648

Main Question or Discussion Point

A)How many LaGrange points does the Earth/Moon system have?

B) How many are stable (no stationkeeping neccessary)?

C) Roughly where are the stable points located?

1/2 point point for each answered correctly
 

Answers and Replies

  • #2
920
0
a)5
b)3
c)Half-distance moon- earth
 
  • #3
204
1
Originally posted by Greg Bernhardt
A)How many LaGrange points does the Earth/Moon system have?
5
B) How many are stable (no stationkeeping neccessary)?
2
C) Roughly where are the stable points located?
In the moon's orbital path about 60 degrees ahead and behind.
 
  • #4
CrystalStudios
You both are wrong!

5 points

2 are stable

3 are meta-stable

If you form a straight line with the meta-stable points, the one stable point is 60 degress to the right of the L1 and L2 and the other stable points is 60 degrees to the left of the L1 and L2 points.


J-Man - your error lies in the fact that you did not say what it was 60 degrees ahead and behind of....

L1 and L2 follow the moon - and so the points are 60 degress right and left of the L1 and L2 points (and of course the moon too).
 
Last edited by a moderator:
  • #5
499
1
No J-man is right. Sadly I did not beat him to post it.
 
  • #6
499
1
In the moon's orbital path about 60 degrees ahead and behind.
It looks like he said where they are to me. And we are both right in the scope of the question. Now that you edited your post, and tossed in a bit more info, you have it correct.
 
  • #7
31
0
A. 6x10^34

B. 1

C. Right near the beach
 
  • #8
18,145
7,648
1.5 points to J-Man!
 

Related Threads on How many LaGrange points does the Earth/Moon system have?

  • Last Post
4
Replies
75
Views
14K
Replies
1
Views
2K
  • Last Post
Replies
10
Views
2K
Replies
18
Views
3K
  • Last Post
Replies
8
Views
10K
  • Last Post
2
Replies
46
Views
2K
  • Last Post
4
Replies
86
Views
7K
  • Poll
  • Last Post
2
Replies
26
Views
6K
  • Last Post
Replies
3
Views
1K
Top