<p>There is one known earth Trojan - <a href="http://en.wikipedia.org/wiki/Earth_trojan" rel="nofollow noreferrer">http://en.wikipedia.org/wiki/Earth_trojan</a></p>

<p>The reason L1, L2 and L3 aren't stable is covered here:   <a href="https://physics.stackexchange.com/questions/36092/why-are-l4-and-l5-lagrangian-points-stable">https://physics.stackexchange.com/questions/36092/why-are-l4-and-l5-lagrangian-points-stable</a></p>

<p>The reason the earth has so few L4 and L5 asteroids is cause other planets like Jupiter and Venus tend to destabilize the orbits - same reason why  Jupiter has so many.</p>

CC BY-SA 3.0
2015-05-27T12:17:42.600Z
2015-05-27T12:17:42.600Z
2017-04-13T12:40:15.377Z
userLTK
<p>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 and moon system? Why are only L4 and L5 stable and L1, L2 and L3 require corrections to remain at those positions?</p>

CC BY-SA 3.0
2015-05-29T10:14:02.763Z
[https://en.wikipedia.org/wiki/Mars_trojan](Mars) has half a dozen known trojans.) It maybe helps to be nearer to the Main Belt.
LocalFluff
<earth><jupiter><orbital-elements><lagrange-point><trojan-asteroids>
Asteroids in langrangian Points 4 & 5
Astrony
# Asteroids in langrangian Points 4 & 5

(Asked by: username_0 on 2015-05-26)

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 and moon system? Why are only L4 and L5 stable and L1, L2 and L3 require corrections to remain at those positions?

**Tags:** earth, jupiter, orbital-elements, lagrange-point, trojan-asteroids

> **Comments:**
> **username_1**: [https://en.wikipedia.org/wiki/Mars_trojan](Mars) has half a dozen known trojans.) It maybe helps to be nearer to the Main Belt.  

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## 1 answers

### Answer by username_2 on 2015-05-27. Score: 1

There is one known earth Trojan - <http://en.wikipedia.org/wiki/Earth_trojan>

The reason L1, L2 and L3 aren't stable is covered here: <https://physics.stackexchange.com/questions/36092/why-are-l4-and-l5-lagrangian-points-stable>

The reason the earth has so few L4 and L5 asteroids is cause other planets like Jupiter and Venus tend to destabilize the orbits - same reason why Jupiter has so many.


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