Trident, a NASA low cost mission to Triton |
Trident, a NASA low cost mission to Triton |
Jun 20 2020, 03:01 AM
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#16
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Member Group: Members Posts: 316 Joined: 1-October 06 Member No.: 1206 |
Interesting, thanks Phil. Would be nice to have a dynamically 'hot' target, but beggars cant be choosers.
P |
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Dec 29 2020, 01:13 PM
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#17
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Member Group: Members Posts: 100 Joined: 30-November 05 From: Antibes, France Member No.: 594 |
Here is a simulated view of Neptune from the surface of Triton. I produced it in 2020 for an article upon the Trident project in the journal of my astronomy club:
We will compare to reality in a few decades ! (The apparent size of Neptune is well respected in the simulated view from my "smartphone": it would represent a disk whose apparent diameter is about 8 arc degrees or 15 times the apparent diameter of the Moon as seen from the Earth). |
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Dec 30 2020, 05:13 PM
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#18
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
That's a powerful image! Triton would be getting a lot of missions if it weren't for the travel time, and an image like that can do a lot to bring Triton forward in people's minds.
I'm not sure what color the skies are on Triton, but Neptune would contribute powerfully. |
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Dec 30 2020, 08:39 PM
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#19
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Member Group: Members Posts: 100 Joined: 30-November 05 From: Antibes, France Member No.: 594 |
Thanks,
A way for me to explore in advance that mystical world that may turn out to be more exotic than expected in fact. I often try to imagine the type of horizon we would get from the surface of Pluto or Triton since the atmosphere of Triton is so thin ( slightly denser than Pluto's atmosphere at "sea level"). I imagined a dull sky and a darker sky toward the zenith. Intuitive logic I would say! For the appearance of the soil, it is quite speculative I would say because we only have one image of the surface of a planetary body of the outer solar system. |
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Dec 31 2020, 06:44 PM
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#20
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Member Group: Members Posts: 708 Joined: 1-April 08 From: Minnesota ! Member No.: 4081 |
Fascinating image Webscientist! The foreground is what I imagined the 'cantaloupe' Triton surface might appear close up. Agree with JRehling such images and others https://www.google.com/search?q=neptune+fro...50&biw=1536 would inspire more interest in outer solar system exploration.
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Dec 31 2020, 09:37 PM
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#21
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Member Group: Members Posts: 100 Joined: 30-November 05 From: Antibes, France Member No.: 594 |
The foreground is what I imagined the 'cantaloupe' Triton surface might appear close up. Thanks again, For the cantaloupe, I used some "ingredients" not related to the cantaloupe terrain Voyager 2 had observed, without the purpose of producing those cantaloupe structures but the outcome reveals small scale-cantaloupes. Satisfied! It also reminds me of the distorted surface the Phoenix lander had observed on Mars. Let's hope we'll get higher resolution images of those cantaloupe terrains in the near future! |
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Feb 19 2021, 11:17 AM
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#22
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Junior Member Group: Members Posts: 27 Joined: 15-January 08 Member No.: 4014 |
Here goes my rendition about lander (in this case I "borrowed" Viking ) on the surface of Triton. Few liquid nitrogen geysers on the far horizon... thin, barely visible atmosphere.
-------------------- iss.astronet.pl
moonshot.astronet.pl |
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Feb 19 2021, 07:43 PM
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#23
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Member Group: Members Posts: 437 Joined: 14-December 15 Member No.: 7860 |
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Feb 19 2021, 08:16 PM
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#24
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Station's rendition seems consistent with small optical thickness of Triton's atmosphere, though it might be slightly more visible. Looking near the horizon it should look brighter especially in the direction of the sun.
https://agupubs.onlinelibrary.wiley.com/doi....1029/92JE00945 The size of the haze particles suggests a bluish color of preferential scattering due to the Angstrom exponent effect. Any methane gas absorption, or absorption by the haze particles could modify this color. -------------------- Steve [ my home page and planetary maps page ]
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Feb 22 2021, 10:26 AM
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#25
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Member Group: Members Posts: 100 Joined: 30-November 05 From: Antibes, France Member No.: 594 |
Thanks Station for your nice art work. The crescent of the giant planet (whose appearance constantly evolves) from the surface of Triton must be breathtaking.
The Sun located at 30 Astronomical Units must appear as a really bright star even if its apparent diameter is only 1/30 the apparent diameter of the Moon from the Earth. I remember the simulator "Pluto Day" to represent the luminosity on the surface of Pluto. Undoubtedly, on Triton, it is not the complete darkness at mid-day! The apparent diameter of Neptune would be around 480 times the apparent diameter of the Sun! |
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Feb 22 2021, 01:54 PM
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#26
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Junior Member Group: Members Posts: 27 Joined: 15-January 08 Member No.: 4014 |
Fantasy continues
This time I created something based on the uranian system. I titled it "Lost on Miranda" -------------------- iss.astronet.pl
moonshot.astronet.pl |
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Feb 23 2021, 08:42 PM
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#27
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Member Group: Members Posts: 708 Joined: 1-April 08 From: Minnesota ! Member No.: 4081 |
Possibly, that explorer is close to Verona Rupes (the tallest cliff in the solar system!). https://en.wikipedia.org/wiki/Verona_Rupes
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Feb 24 2021, 12:17 AM
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#28
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Solar System Cartographer Group: Members Posts: 10226 Joined: 5-April 05 From: Canada Member No.: 227 |
Often misrepresented! That cliff is a talus deposit at the angle of repose. If you jumped off it you would slide down it, not fall through space until you hit the bottom. My evidence? - the full image or a mosaic of images from this sequence shows where the horizon would be just beyond the terminator. It's not perpendicular to the cliff. Bring skis, not airbags.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Feb 24 2021, 05:01 PM
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#29
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Member Group: Members Posts: 708 Joined: 1-April 08 From: Minnesota ! Member No.: 4081 |
Thanks Phil. Should have searched UMSF first to find your abstract https://www.lpi.usra.edu/meetings/lpsc1991/pdf/1667.pdf from LPSC XXII. Maybe should be an addendum to the Wikipedia article.
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Feb 26 2021, 03:01 AM
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#30
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
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