Dwarf Planet Eris, formerly known as 'Xena' |
Dwarf Planet Eris, formerly known as 'Xena' |
Sep 13 2006, 10:59 PM
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#1
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Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Here's the official name of the 'Xena' ...
Eris: 'Xena' (2003 UB313, 136199) Eris I or Dysnomia: 'Gabrielle' -------------------- - blue_scape / Nico -
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Oct 8 2007, 04:22 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
Probably some perfect "grand tour" type alignment, where each spacecraft-planet encounter is as close-in to the planet as possible for a departure trajectory that's approximately tangent to the planet's orbit or as close to tangent as possible.
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Oct 8 2007, 05:22 AM
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#3
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Probably some perfect "grand tour" type alignment, where each spacecraft-planet encounter is as close-in to the planet as possible for a departure trajectory that's approximately tangent to the planet's orbit or as close to tangent as possible. Eris is also well off of the ecliptic at present (and for a long time coming). I doubt that keeping things in the ecliptic for three flybys then counting on Neptune to provide all of the work to acquire a high inclination is feasible. Maybe a Jupiter-Saturn combo could do it, assuming the rings weren't a problem. That would actually be a scenario that would unfold fairly often. Uranus is actually in a pretty good position right now for an assist to Eris, but it'll soon move out of that good position and not come back for 8 decades. Neptune, however, is moving into position, but again, Neptune can't bend the path down in very good proportion to Jupiter's bending it out. In only 230 years or so, Eris will come within 40 AU of the Sun. Let's plan on an Eris Orbiter/Lander then. Start the buzz now. |
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