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[QUOTE]Originally posted by Timo: [QB] And on the issue of seeing or not seeing the Vulcan moon/T'Khut, it could be that this second body is orbiting neither Vulcan nor its sun. There are plenty of other geometries for this fancy four-body problem to follow. One of the fancier orbital geometries was on the local science pages last weekend: a tiny rock that corkscrews around Earth's orbit around the Sun. Every 95 years, the corkscrew brings the rock from a position just "ahead" of Earth to a position just "behind" it, via the long route. And then back. And every 1200 years or so, the thing jumps the end bumpers of its track and gets stuck orbiting Earth on a polar orbit, as a moon of our planet. And then it breaks loose again, and starts seesawing between the "leading" and "trailing" positions again. Look for Earth gaining another moon again in 2600 AD or so. T'Khut (and its smaller companion from ST:TMP:CE) might visit Vulcan every X years, and ST4 and "Unification" didn't quite mark the time of nearest approach. Timo Saloniemi [/QB][/QUOTE]
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