Neptune Orbiter, Another proposed mission |
Neptune Orbiter, Another proposed mission |
Nov 10 2005, 03:51 PM
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Member Group: Members Posts: 509 Joined: 2-July 05 From: Calgary, Alberta Member No.: 426 |
This seems like a good place to start off the Uranus and Neptune forum: with the next ice-giants mission.
I will admit to not knowing a whole lot about the Neptune Orbiter With Probes (NOWP), other than the fact that it's in the planning stages, and a few other details I've gathered from Wikipedia and various other Internet sources. Anyone care to get this one going with a bit more information? |
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Mar 1 2007, 02:30 PM
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Member Group: Members Posts: 509 Joined: 2-July 05 From: Calgary, Alberta Member No.: 426 |
Yeah, looking at some of the references cited above, the precession period for Triton's orbit around Neptune is on the order of 600 years or so -- a lot shorter than I would have thought.
So basically Neptune's equatorial plane has about a 28-degree tilt relative to Neptune's orbit around the Sun, and Triton's orbit is inclined 22 degrees to that (retrograde of course). The result of this is that Triton's axial tilt, relative to Neptune's orbit around the Sun, can be as large as (28+22) degrees, or as small as (28-22) degrees; generally it's somewhere in between. (If we take things relative to the Earth, there's also the matter of the tilt of Neptune's orbit relative to the ecliptic, but that's only a couple of degrees or so.) |
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