Comments on: The Pattern of Resources in Space http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/ The Coming Revolution of Civilization in Space! Mon, 21 Oct 2013 09:43:34 +0000 hourly 1 By: SE3 – Dr Philip Metzger, NASA Physicist & Space Miner Explains Space Mining | Friday After Work - Many questions have been answered but how many more remain? http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/#comment-180 SE3 – Dr Philip Metzger, NASA Physicist & Space Miner Explains Space Mining | Friday After Work - Many questions have been answered but how many more remain? Thu, 06 Jun 2013 03:16:17 +0000 http://www.philipmetzger.com/?p=112#comment-180 [...] The Pattern of Resources in Space [...]

]]> By: admin http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/#comment-24 admin Tue, 26 Feb 2013 18:20:08 +0000 http://www.philipmetzger.com/?p=112#comment-24 Who knows — maybe someday in the distant future those little islands of mass at Neptune’s L4 and L5 might be useful for a scientific outpost or a comm relay or something.

I saw a different Youtube animation of the Hildas once. It showed them in the Jupiter-stationary reference frame and again in an intertial reference frame with Jupiter also moving in the image. It was very enlightenting. In the Jupiter-stationary frame they seem to magically hop between the three points of the triangle. In the intertial frame you can see they are actually in a circular orbit just like Jupiter, but the “spirograph” interaction of the 3:2 ratio of orbits draws a triangle in the relative frame. I have never been able to find that video again, but I just noticed that Wikipedia has a gif that shows the same thing, on the right side of the page, second image down:

http://en.wikipedia.org/wiki/Hilda_family

]]> By: Hollister David http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/#comment-23 Hollister David Tue, 26 Feb 2013 18:03:51 +0000 http://www.philipmetzger.com/?p=112#comment-23 Jupiter’s the big frog in our pond, so I’d imagine it has the healthiest L4 and L5 populations. I’d expect the gas giants further out to have L4s and L5s less vulnerable to Jupiter’s influence. (Googling…) Neptune seems to have Trojans: http://en.wikipedia.org/wiki/Neptune_trojan .

Watching animations of the Hildas, it’s neat they way they periodically visit Jupiter’s Trojans. I wonder if the there’s a similar relation between Neptune’s Trojans and the Plutinos. Perhaps the Plutinos are cyclers between Neptune’s Trojans and the Kuiper Belt.

]]> By: admin http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/#comment-22 admin Tue, 26 Feb 2013 06:41:45 +0000 http://www.philipmetzger.com/?p=112#comment-22 Great point. Thanks! BTW, do you know if astronomers have looked at the Lagrange points of the other gas giants?

]]> By: Hop David http://www.philipmetzger.com/blog/the-pattern-of-resources-in-space/#comment-21 Hop David Tue, 26 Feb 2013 03:16:15 +0000 http://www.philipmetzger.com/?p=112#comment-21 And there are the Trojan asteroids at the Sun-Jupiter L4 and L5 regions. Two healthy populations of asteroids even further above the snow line. The Hilda asteroids visit the sun-Jupiter L4, L5 and L3 at their aphelions and pass through the Main Belt in their perihelions. The Hildas are natural cyclers moving between the main belt and the Trojans.

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