Neptune Orbiter, Another proposed mission |
Neptune Orbiter, Another proposed mission |
 Nov 10 2005, 03:51 PM
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Member  Group: Members Posts: 501 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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Feb 14 2007, 01:57 AM
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Member Group: Members Posts: 501 Joined: 2-July 05 From: Calgary, Alberta Member No.: 426 |
The orbits will certainly precess -- but at that distance from the Sun, tidal effects have got to be tiny. The changes would happen over a very long period of time.
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 Feb 17 2007, 09:16 PM
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 Member Group: Members Posts: 267 Joined: 28-September 05 From: Orion arm Member No.: 516 |
Hi,
any ideas for an illustration, report, paper, etc. of Triton's seasonal changes during its 176 year trip together with Neptune around the sun combined with its 157.35 deg retrograde orbit? Would be very interesting to visualize how polar night and day are changing and which latitudes are affected...  Triton should be the strangest world in the solar system concerning seasonal changes, even if the seasons are quite long out there...   THX & Bye. |
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Feb 18 2007, 02:10 PM
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#4
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Member Group: Members Posts: 267 Joined: 28-September 05 From: Orion arm Member No.: 516 |
Hi again,
here a link to a french website dealing with the question of latitude changes of Triton's subsolar point over historical time : http://bugle.imcce.fr/fr/observateur/support/Triton/ There seems to be some disagreement on the calculation of those variations...  ? Anyhow, Triton's seasons don't look that simply predictable as Earth's.... Bye. |
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Feb 22 2007, 02:13 PM
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#5
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 Interplanetary Dumpster Diver Group: Moderator Posts: 4045 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
It also has some of the strangest seasons, due to its tilt, its odd orbit, and Neptune's tilt and long orbit. By the way, I am glad to see new work is still being done at Pic du Midi. The French nearly made a tragic decision to close it a few years ago, due to the fact that their observatories in other parts of the world have larger telescopes, and, given the nature of this sharp peak, there really isn't anywhere else to build on Pic du Midi. Still, it is unbeaten in its steady skies for planetary astronomy. Fortunately, I think the French powers that be realized that.
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Rob Pinnegar Neptune Orbiter Nov 10 2005, 03:51 PM
elakdawalla I don't know much myself about what's poss... Nov 10 2005, 04:43 PM
tedstryk I would really like to see a Neptune orbiter with ... Nov 10 2005, 05:26 PM Rob Pinnegar QUOTE (tedstryk @ Nov 10 2005, 11:26 AM)Maybe... Nov 10 2005, 05:59 PM elakdawalla QUOTE (tedstryk @ Nov 10 2005, 10:26 AM)I wou... Nov 10 2005, 06:20 PM JRehling QUOTE (elakdawalla @ Nov 10 2005, 11:20 AM)Ho... Nov 10 2005, 07:09 PM tedstryk If an orbiter is a long way off, I think a Triton ... Nov 10 2005, 07:13 PM ljk4-1 QUOTE (tedstryk @ Nov 10 2005, 02:13 PM)If an... Nov 10 2005, 07:53 PM Jeff7 QUOTE (tedstryk @ Nov 10 2005, 02:13 PM)If an... Nov 11 2005, 05:20 PM hendric QUOTE (elakdawalla @ Nov 10 2005, 12:20 PM)Ho... Nov 16 2005, 08:22 AM Rob Pinnegar QUOTE (hendric @ Nov 16 2005, 02:22 AM)Accord... Nov 16 2005, 02:02 PM tedstryk It is no doubt battered, but so is Mimas. A possi... Nov 16 2005, 02:28 PM Rob Pinnegar QUOTE (tedstryk @ Nov 16 2005, 08:28 AM)A pos... Nov 16 2005, 05:09 PM RNeuhaus The trip to planets beyond than Saturn, I think th... Nov 10 2005, 07:38 PM tasp QUOTE (RNeuhaus @ Nov 10 2005, 01:38 PM)The t... Nov 10 2005, 09:49 PM RNeuhaus QUOTE (tasp @ Nov 10 2005, 04:49 PM)Prometheu... Nov 10 2005, 10:00 PM JRehling QUOTE (tasp @ Nov 10 2005, 02:49 PM)Prometheu... Nov 10 2005, 10:06 PM tasp To revise and extend my remarks,
Would a reusable... Nov 11 2005, 12:59 AM tasp Meanwhile, back at Neptune,
Has anyone considered... Nov 11 2005, 01:09 AM Rob Pinnegar QUOTE (tasp @ Nov 10 2005, 07:09 PM)Has anyon... Nov 11 2005, 01:36 AM tedstryk QUOTE (Rob Pinnegar @ Nov 11 2005, 01:36 AM)T... Nov 11 2005, 02:28 AM Rob Pinnegar QUOTE (tedstryk @ Nov 10 2005, 08:28 PM)I don... Nov 11 2005, 06:22 AM Decepticon There where some ideas for Neptune orbiter in Astr... Nov 11 2005, 12:42 AM BruceMoomaw There has actually been quite a lot of work done b... Nov 11 2005, 04:01 AM tasp I'll digress to Uranus orbiting briefly.
Assu... Nov 11 2005, 04:11 AM JRehling QUOTE (tasp @ Nov 10 2005, 09:11 PM)I'll ... Nov 11 2005, 02:23 PM tedstryk QUOTE (JRehling @ Nov 11 2005, 02:23 PM)Unfor... Nov 11 2005, 03:01 PM Rob Pinnegar QUOTE (tedstryk @ Nov 11 2005, 09:01 AM)That ... Nov 11 2005, 05:11 PM tasp QUOTE (JRehling @ Nov 11 2005, 08:23 AM)If th... Nov 11 2005, 03:12 PM JRehling QUOTE (tasp @ Nov 11 2005, 08:12 AM)Can ... Nov 11 2005, 04:45 PM BruceMoomaw I may have something to say on THAT subject in my ... Nov 11 2005, 04:53 AM BruceMoomaw That's another reason why, given the likely de... Nov 11 2005, 10:18 PM tasp Alex Blackwell has a post in the Uranus Orbiter th... Nov 12 2005, 02:26 PM tedstryk Here is an approach sequence of Proteus. All colo... Nov 15 2005, 11:59 PM Rob Pinnegar QUOTE (tedstryk @ Nov 15 2005, 05:59 PM)It is... Nov 16 2005, 06:25 AM tasp And even Miranda is somewhat oblongish.
Would I b... Nov 16 2005, 06:31 PM David QUOTE (tasp @ Nov 16 2005, 06:31 PM)And even ... Nov 17 2005, 03:11 AM tasp I suspect the 'lumpiness' of Iapetus is a ... Nov 17 2005, 04:46 AM Bob Shaw QUOTE (tasp @ Nov 17 2005, 05:46 AM)I suspect... Nov 17 2005, 08:01 PM tasp With a greater understanding or how orbital tours ... Nov 26 2005, 02:55 PM Decepticon A simple Google search reveled this!?
What P... Nov 26 2005, 03:41 PM BruceMoomaw That's the nuclear-electric version of Neptune... Nov 27 2005, 02:43 AM Decepticon I hate anything that Unfurls.
When Galileo... Nov 27 2005, 12:31 PM BruceMoomaw Just keep in mind that Galileo's antenna was e... Nov 27 2005, 01:32 PM vjkane2000 QUOTE (BruceMoomaw @ Nov 27 2005, 06:32 AM)Ju... Nov 28 2005, 03:38 AM mchan QUOTE (BruceMoomaw @ Nov 27 2005, 05:32 AM)Ju... Nov 29 2005, 07:51 AM edstrick In a conversation some 10? years ago, maybe at the... Nov 28 2005, 06:06 AM edstrick Deployments have ALWAYS been one of the big missio... Nov 29 2005, 08:44 AM tasp Just in case NASA/JPL finds themselves looking for... Dec 5 2005, 05:23 AM dvandorn Does Triton *really* have enough of an atmosphere ... Dec 5 2005, 07:35 AM Toma B QUOTE (dvandorn @ Dec 5 2005, 10:35 AM)Does T... Dec 5 2005, 08:34 AM chris QUOTE (Toma B @ Dec 5 2005, 08:34 AM)Solution... Dec 5 2005, 10:49 AM Toma B QUOTE (chris @ Dec 5 2005, 01:49 PM)Which cou... Dec 5 2005, 11:42 AM chris QUOTE (Toma B @ Dec 5 2005, 11:42 AM)What did... Dec 5 2005, 12:52 PM Toma B QUOTE (chris @ Dec 5 2005, 03:52 PM)If you la... Dec 5 2005, 01:27 PM paxdan QUOTE (Toma B @ Dec 5 2005, 01:27 PM)Question... Dec 5 2005, 01:47 PM ljk4-1 Drop a probe right into one of the Triton geysers.... Dec 5 2005, 02:57 PM chris QUOTE (Toma B @ Dec 5 2005, 01:27 PM)Question... Dec 5 2005, 03:07 PM Toma B QUOTE (chris @ Dec 5 2005, 06:07 PM)I wasn... Dec 6 2005, 08:48 AM chris QUOTE (Toma B @ Dec 6 2005, 08:48 AM)All righ... Dec 6 2005, 10:41 AM helvick QUOTE (Toma B @ Dec 5 2005, 09:34 AM)Mars atm... Dec 5 2005, 12:02 PM JRehling QUOTE (Toma B @ Dec 5 2005, 12:34 AM)Mars atm... Dec 5 2005, 04:23 PM edstrick Note that the surface of Triton may be very rough ... Dec 5 2005, 11:07 AM tasp Check out the last half of the Uranus orbiter thre... Dec 5 2005, 03:05 PM ermar As a long-time lurker, sorry for spamming links, b... Dec 10 2005, 02:23 AM Toma B QUOTE (ermar @ Dec 10 2005, 05:23 AM)As a lon... Dec 10 2005, 06:56 AM BruceMoomaw They definitely won't fly the nuclear-propelle... Dec 10 2005, 06:42 AM BruceMoomaw Sure: http://www.lpi.usra.edu/opag/jun_05_meetin..... Dec 10 2005, 08:46 AM tedstryk QUOTE (BruceMoomaw @ Dec 10 2005, 08:46 AM)Th... Dec 10 2005, 01:29 PM AlexBlackwell I apologize for reviving a dead thread; however, F... Jul 17 2006, 07:51 PM Rob Pinnegar QUOTE (AlexBlackwell @ Jul 17 2006, 01:51... Jul 18 2006, 03:36 PM JRehling I would think that at some point the weight of the... Jul 18 2006, 03:38 PM Chmee QUOTE (JRehling @ Jul 18 2006, 11:38 AM) ... Jul 18 2006, 03:47 PM AlexBlackwell QUOTE (Chmee @ Jul 18 2006, 05:47 AM) By ... Jul 18 2006, 04:42 PM ljk4-1 I wonder if a very large solar sail could be desig... Jul 18 2006, 05:34 PM Analyst Before the "nuclear problem" comes the m... Jul 20 2006, 10:54 AM antoniseb QUOTE (Analyst @ Jul 20 2006, 04:54 AM) B... Jul 21 2006, 11:52 PM Stephen QUOTE (antoniseb @ Jul 21 2006, 11:52 PM)... Jul 25 2006, 04:35 AM Greg Hullender But surely at the distance of Neptune the force ap... Jul 25 2006, 05:01 AM helvick QUOTE (Greg Hullender @ Jul 25 2006, 06:0... Jul 25 2006, 05:34 AM ljk4-1 Would a Neptune orbiter be able to utilize the pla... Jul 25 2006, 02:58 PM TritonAntares QUOTE (ljk4-1 @ Jul 25 2006, 03:58 P... Jul 25 2006, 11:17 PM qraal Hi All
Solar concentrators are such a cool concep... Jul 26 2006, 01:40 PM mimile There have been many good answers to the question ... Feb 11 2007, 11:38 AM Rob Pinnegar Those are good points, but it may be worth keeping... Feb 11 2007, 05:04 PM nprev Nereid: 27.6 deg with respect to Neptune's equ... Feb 11 2007, 05:37 PM JRehling It's odd that people brought the topic of Nere... Feb 12 2007, 01:42 AM nprev Good point, JR. In fact, Nereid spins pretty fast:... Feb 12 2007, 04:13 AM tasp OK, I am not smart enough to visualize this in my ... Feb 12 2007, 06:24 AM mchan Possibly that the node crossings of the two orbits... Feb 12 2007, 08:05 AM tasp Wikipedia has stats on Nereid and reports its... Feb 12 2007, 03:14 PM JRehling QUOTE (tasp @ Feb 12 2007, 07:14 AM) Wiki... Feb 12 2007, 04:12 PM tasp Thanx, appreciate the clarification very much.
So... Feb 13 2007, 03:43 AM mchan There is a graph in "The New Solar System... Feb 17 2007, 11:42 PM Rob Pinnegar Yeah, looking at some of the references cited abov... Mar 1 2007, 02:30 PM tasp Just throwing out some ideas here:
Modify a follo... Mar 2 2007, 05:30 AM |
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