Neptune Orbiter, Another proposed mission |
Neptune Orbiter, Another proposed mission |
Nov 10 2005, 03:51 PM
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#1
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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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Nov 16 2005, 06:31 PM
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#2
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Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
And even Miranda is somewhat oblongish.
Would I be presumptuous to request a mosaic of Proteus, Hyperion, Miranda, etc. (all the satellites around the transition zone from irregular to sphereical) ? The moons to scale mosaics are fascinating, if my computer skills were better, I might try to put one together, but I defer to those who are skillful in such things. Thanx for the consideration. |
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Nov 17 2005, 03:11 AM
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#3
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Member Group: Members Posts: 809 Joined: 11-March 04 Member No.: 56 |
QUOTE (tasp @ Nov 16 2005, 06:31 PM) And even Miranda is somewhat oblongish. Would I be presumptuous to request a mosaic of Proteus, Hyperion, Miranda, etc. (all the satellites around the transition zone from irregular to spherical) ? By way of reminder, those moons are Enceladus, Miranda, Proteus, Mimas, Hyperion, and Nereid; then there's a large gap in size before we get down to Amalthea and Phoebe, which I would say are no longer "transitional" -- that is, they might be vaguely roundish (as Phoebe is) but there's no particular reason for them to be so, other than chance. I would go so far as to say that Hyperion and Nereid are probably outside the "transition zone". The Main Belt asteroids which are also in that "transition zone" are Pallas, Vesta, Hygiea (and - smaller than Hyperion - Interamnia and Davida); unfortunately none of them other than Vesta and Davida have images that show their shape. The "transition zone" appears to be the 400km-600km diameter range. Below Mimas everything is pretty irregular. I don't know where the cutoff would be above 600km, since Vesta is itself rather irregular, and there's a big gap between it and Ceres. If you count Iapetus as irregular, then there's a much larger transition zone, including Charon, Umbriel, Ariel, Dione, and Tethys, but Iapetus is really the odd one out there. |
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