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Imagine to use Lagrangepoints

Posted by: Ekkehard Augustin - Fri May 16, 2008 8:18 pm
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Imagine to use Lagrangepoints 
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Post Imagine to use Lagrangepoints   Posted on: Fri May 16, 2008 8:18 pm
At the 7th of May, 2008, there was an article under www.wissenschaft.de teling that there may have been bodies of several dozen km diameter as trojans 390,000 km ahead and behind the Moon. From Earth they would have been as bright as Venus or Jupiter. The article refers to Jack Lissauer from NASA.

What about using that space for different pusposes like bystop towards the Moon, construction of a station and habitats, propellant depots and launchpoints into deep space?

What else do you imagine?

The points might be sufficient for buildings to be found in small towsn of around 50,000 inhabitants - although this is meant to illustrate the space only but not as a suggestion to colinize the points.



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Post Tick! V.G.   Posted on: Sun May 18, 2008 3:45 pm
Hi Ekkehard

Your idea is entirely sensible, but like all reasonable ideas, it has already been around the block a few times. The idea of putting space colonies at the L5 libration point of the Earth-Moon system was suggested by Gerard O'Neill, which led to the formation of the L5 Society, now subsumed into the National Space Society. O'Neill further suggested using the L2 point as a place for a catcher, to intercept materials catapulted from the lunar surface by a mass-driver, for subsequent transport to L5.

Later work on orbital mechanics raised doubts about L5 being the most accessible place from both the Earth and the Moon. I don't know what the current thinking is.

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Post    Posted on: Mon May 19, 2008 6:28 pm
Hello, xiphius,

I was not out on colonies but on alternative purposes of meaning now.

The reason to initiate this thread is the size of the hypothetical former bodies and the duration of their presence estimated - according to the article - at 100 mio years.

Bigelow offered to NASA to build lunar habitats at a Lagrange point, a few competitors of NASA's former competition for the CEV proposed to use it as location for depots. Moe might be thought of yet.

From time to time I wondered if those points are of sufficient size or space to be applied for a lot purposes in parallel.

Under such aspects I initiated the thread - I am out on concrete ideas of meaning in the near future.



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Post    Posted on: Wed Dec 31, 2008 12:47 pm
Just this moment I thought of extending the point to the earthian Lagrange points of our orbit around the sun.

Probes might be sent there immediately without having to wait for a launch window on Earth. This could free launch pads and sites as well as orbits. The final launch wouldn't have to work against the earthian gravity and launch windows at those Lagrange points might be more favourable, better timed and so on.



What about it?



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