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Closest in 76000 years, How do we know that?
karolp
post Sep 4 2006, 01:11 PM
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The opposition of 2003 is known to be the closest in 76000 years. How do we know that? Most planetarium software does not reach further back than 3000 BC...


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Phil Stooke
post Sep 4 2006, 01:15 PM
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That limitation is artificial, based on what the makers expect amateur users are most likely to need. Professional analytical tools can explore orbits over millions of years.

Phil


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... because the Solar System ain't gonna map itself.

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