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(meteorobs) RE: Lagrange points
Was there not a Trojan moon (small asteroid size) recently verified to be in
the 'U'-shaped Langrange orbit (using L4 and L5) around the Sun, with our
Earth ?
Excellent Langrangian eplanation at
http://map.gsfc.nasadot gov/html/lagrange.html .
Bruce
Computer Hardware Analyst - IS/Field Services
* email: bruce_musson@dofascodot ca
* tel: (905)548-7200 x2388
* fax: (905)548-4960
> -----Original Message-----
> From: Terry Richardson [SMTP:richardsont@cofcdot edu]
> Sent: Saturday, January 29, 2000 5:24 AM
> To: meteorobs@jovian.com
> Subject: Re: (meteorobs) Re: Zodiacal light
>
> One small correction to what Lew wrote:
>
> >the "Lagrange points" in the Earth-Moon system: these points, labeled
> "L1"
> >through "L5", are spots in space where small objects can remain
> "suspended" by
> >gravity, without orbital motion relative to the Earth or moon.
>
>
> Actually they are in orbital motion with the moon around the earth and the
> locations are what are called points of gravitiationallly stable
> equilibrium like a marble at the bottom of a bowl. Any reasonable force
> which peturbs them from their location will not change their orbit because
> just like the marble which when moved oscillates around the bottom of the
> bowl, they likewise osscillate around their stable position. But they are
> in orbit around the earth or sun. The Trojan asteroids occupy a similar
> position with Jupiter and the sun.
>
>
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