All Questions
Tagged with lagrange-point earth
10
questions
1
vote
0
answers
67
views
Is there a specific area on the far side of the moon, directly below the L2 Lagrange point in the Earth/Moon system?
It seems like there should be, and if so I wonder how large an area it is, if it changes size over time, and if it moves or wobbles in some way. On the latst point, I imagine it would certainly wobble ...
2
votes
1
answer
100
views
largest balanced mass objects in Earth's L4 & L5 Lagrange points?
What is the largest single-object mass that would allow two objects of equal mass to have a stable orbit, one each, in Earth's L4 and L5 Lagrange points?
2
votes
1
answer
177
views
Would an accumulation of dust in a planet's L1 Lagrange point plausibly obscure it from Earth?
I'm designing a hypothetical newly discovered planet in our solar system that has an ecosystem comparable to Earth's that supports intelligent life. The explanation given for the planet remaining ...
5
votes
1
answer
86
views
When does DSCOVR see the Moon transit Earth?
In 2015, NASA published the first images of the Moon transiting the Earth as seen from DSCOVR. The text accompanying these images says such a transit would be captured on camera about twice a year.
I ...
13
votes
2
answers
4k
views
Why is the L3 Lagrangian point not perfectly stable? And why is the Earth-Sun L3 point a bit less than one A.U.?
I suppose the answer might involve general relativity, but still....
The L4 and L5 points are considered, theoretically, long-term stable, but not L3, on the exact opposite side of the Sun... And it ...
3
votes
1
answer
425
views
Are Sun-Earth L1 & L2 points generally considered outside the Earth's Hill Sphere?
This image from Wikipedia of the SE Lagrange points and the Hill Spheres suggests that the SEL points are outside the Earth's Hill Sphere. (The Hill spheres are the circular regions surrounding the ...
3
votes
2
answers
2k
views
Does the Lagrange L1 point have a 'size'?
Like in cubic kilometers, what is the size of L1 "area of influence"? being unstable I guess that size can vary?
7
votes
2
answers
1k
views
How can Earth-Sun Lagrange points L1 & L2 even be semi stable considering the moon?
I know that the Earth-Sun Lagrange L1, L2, and L3 points are not considered stable over longer periods, especially when compared to L4 and L5... But, with the moon orbiting the Earth in the general ...
2
votes
1
answer
138
views
Asteroids in langrangian Points 4 & 5
There are Asteroids "trapped" in Jupiters Langrange points 4 and 5 called trojans and greeks. Are there any asteroids in the earths L4 and L5? Have we seen asteroids in Lagrange points of the earth ...
20
votes
1
answer
696
views
How stable are Lissajous orbits?
Now that the Gaia Space Telescope is on it's way to the Sun-Earth L2 Lagrangian point (SEL2), I start wondering about the stability of Gaia's orbit there. The Planck Telescope is already there, as was ...