asteroïds circle and hoor's could

General discussion about Celestia that doesn't fit into other forums.
Topic author
oristarck

astero?ds circle and hoor's could

Post #1by oristarck » 05.09.2003, 00:01

good days mister consceptor
can you create the " astero?d circle " in plance at mars to jupiter?
and can create the " hoor's could " around the solar system?
thanks
ps: excuse me for wrong syntaxe, but am french and very bad en english :cry:

florian
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Brendan
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Post #2by Brendan » 05.09.2003, 14:57

There are already files for the asteroid belt, Jovian Trojans, the Centaurs and the Kuiper belt. They are listed on Mike's web site. http://mikecelestia.bravehost.com/index.htm
There used to be a big asteroid addon with thousands of them, and another version with only those 50 km or larger. But the site it's on is not available anymore, so maybe someone could send it to you.
I have not seen any Oort cloud addon. They have not directly observed it yet.

Brendan

Darkmiss
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Post #3by Darkmiss » 05.09.2003, 23:09

When refering to Asteroids...
Could someone explaine what Centaurs and Trojans are :?:
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Post #4by JackHiggins » 05.09.2003, 23:25

Centaur- an object like chiron, which has characteristics of both a large asteroid and a comet (releases gas & dust near perihelion). They have orbits with perihelion a bit outside jupiter's orbit, and aphelion near or outside neptune's orbit.

Trojan- object orbiting at the L4 or L5 point of a planet or moon. This means that it's either 60 degrees ahead, or 60 degrees behind an object in it's orbit. These lagrange points are gravitationally stable. (I'm not exactly sure why this is though) If you were to make a triange between the trojan, the planet & the sun, the triangle would be equilateral (if you have a perfectly circular orbit)

Jupiter has hundreds of trojans, mars has a few, and I think the earth might have one or two as well.
- Jack Higgins
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Post #5by granthutchison » 05.09.2003, 23:58

JackHiggins wrote:Jupiter has hundreds of trojans, mars has a few ...
And one for Neptune, too:
http://cfa-www.harvard.edu/iau/lists/Ne ... ojans.html

Grant

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Post #6by Darkmiss » 06.09.2003, 10:30

Jack, you are a vast array of knowledge
Thank you once again :wink:
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Post #7by Brendan » 07.09.2003, 16:46

Here's a web page with nice diagrams of the Lagrange points. http://map.gsfc.nasa.gov/m_mm/ob_techorbit1.html

Brendan


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