Register to reply

Stable Earth/Lunar Orbit

by TheAwkwardEng
Tags: earth or lunar, orbit, stable
Share this thread:
TheAwkwardEng
#1
Jun9-11, 08:55 AM
P: 1
Hello! I don't know if this is in the right place or not. So if it's not, I won't misplace it in the future.

Anyway, I was recently thinking about the orbits of planets around Binary Stars, and was wondering if it's possible to have a similar orbit around the Earth and the Moon. Have a figure-eight like Orbit that would stay stable even with the movement of the Moon and the varying distance. Do you know if it's possible?
Phys.Org News Partner Astronomy news on Phys.org
Smallest known galaxy with a supermassive black hole found
Mystery of rare five-hour space explosion explained
Glowing galaxies in telescopic timelapse
Nik_2213
#2
Jun9-11, 05:09 PM
P: 217
No, sadly, because it would soon be perturbed by Sun's gravity...

On a local scale, this even applies to the nominally stable L4 & L5 positions. IIRC, they are only metastable due to solar gravity, Earth's slightly elliptical orbit, Venus & Jupiter etc etc. However, a 'halo orbit' around those geometric positions *will* survive for a long time...


Register to reply

Related Discussions
Lunar lander in orbit around the moon and how much work the thrusters do Introductory Physics Homework 13
Lunar orbit question (calculating the mass ratio of earth and moon) Introductory Physics Homework 1
Conservation of ME and stable orbit Classical Physics 10
Lunar orbit transfer Advanced Physics Homework 0
Lunar Surface-to-Orbit Shuttle Mechanical Engineering 4