Charon shine on pluto's farside, is there any charon shine on pluto? |
Charon shine on pluto's farside, is there any charon shine on pluto? |
May 15 2021, 01:04 PM
Post
#1
|
||
Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
i wandered about charonshine on pluto and
i watched this animation of the flyby and according to it there should be a good chunk of charonshine on the farside lighting up mapped parts and unmapped parts of the southern hemisphere in this image https://upload.wikimedia.org/wikipedia/comm...cklit_Pluto.jpg here is a pic from the animation showing potential charonshine on pluto can anyone like ted pull real charonshine from any of the pluto images, because theoretically there was a huge hunk of it visible during the flyby and i want to add it to known map coverage here is a whole gallery of raw pluto images for anyone to attempt charonshine extraction http://pluto.jhuapl.edu/soc/Pluto-Encounte...Date&page=9 |
|
|
||
May 15 2021, 02:13 PM
Post
#2
|
|
Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
There was lots of discussion of Charonshine in the post-encounter threads - check out these for example:
http://www.unmannedspaceflight.com/index.php?showtopic=8074 http://www.unmannedspaceflight.com/index.php?showtopic=8071 http://www.unmannedspaceflight.com/index.php?showtopic=8103 |
|
|
May 16 2021, 12:52 PM
Post
#3
|
|
Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
There was lots of discussion of Charonshine in the post-encounter threads - check out these for example: http://www.unmannedspaceflight.com/index.php?showtopic=8074 http://www.unmannedspaceflight.com/index.php?showtopic=8071 http://www.unmannedspaceflight.com/index.php?showtopic=8103 yes there is charonshine on pluto conversations in there but i don't see what i am looking for (a good image of charonshine on pluto i can reproject into a map --edit--- i did find a really nice charon night being lit by plutoshine image and i reprojected it into a map and merged it with the charon map on the usgs astropedia the usgs map i used can be found here https://astrogeology.usgs.gov/search/map/Ch...ic_300m_Jul2017 you can easily find lots of images of charon's night being lit by plutoshine by simply searching "charon's night" |
|
|
Oct 26 2021, 11:03 AM
Post
#4
|
|
Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
a new paper about pluto's night side and charonshine was published
https://arxiv.org/pdf/2110.11976.pdf |
|
|
Nov 18 2021, 04:42 AM
Post
#5
|
|
Member Group: Members Posts: 242 Joined: 13-October 09 From: Olympus Mons Member No.: 4972 |
A closer look at the map projected images of that paper reveal around 4 fractures of the anti-encounter side "Reindeer Antlers" extending into the southern hemisphere as I thought would be the case as well as two features between them I can certainly say are craters, one with a central peak around 45 South 330 East. There are several other crater-like circular features and linear ones but these could just be noise artifacts as they do not stand out as much as those mentioned above. The best way I could compare this analysis is when Phil Stooke had to pick out features on blurry images of Puck, Larissa, and Proteus.
-------------------- "Thats no moon... IT'S A TRAP!"
|
|
|
Nov 18 2021, 09:47 PM
Post
#6
|
|
Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
A closer look at the map projected images of that paper reveal around 4 fractures of the anti-encounter side "Reindeer Antlers" extending into the southern hemisphere as I thought would be the case as well as two features between them I can certainly say are craters, one with a central peak around 45 South 330 East. There are several other crater-like circular features and linear ones but these could just be noise artifacts as they do not stand out as much as those mentioned above. The best way I could compare this analysis is when Phil Stooke had to pick out features on blurry images of Puck, Larissa, and Proteus. uhmm..it would be a good idea to post a pic so the experts can have a look and see if its just noise or if your on to something that Sputnik impact (formed the heart) must have been very powerful to cause the other side to crack and buckle that much, how didn't pluto blow up into tons of pieces by the force/power of this near head on(?) collision? looks like the terrain cracked around the heart (creating cracks around the heart, and lots of buckled terrain) (i looked at pluto's DEM) |
|
|
Nov 18 2021, 10:11 PM
Post
#7
|
|
Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
"how didn't pluto blow up into tons of pieces"
An impact crater forms as an expanding shock from the impact excavates a transient cavity, which becomes the crater after other modifications (gravity, ejecta fallback etc). For a body to be blown apart the entire body has to be within that transient cavity. No observed impact crater from Stickney on Phobos to SPA on the Moon or Sputnik on Pluto comes close to that. If you can see a crater it was nowhere near blowing the object apart. Also, the drawings of Pluto are by James Tuttle Keane. 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) |
|
|
Nov 19 2021, 12:12 PM
Post
#8
|
|
Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
"how didn't pluto blow up into tons of pieces" An impact crater forms as an expanding shock from the impact excavates a transient cavity, which becomes the crater after other modifications (gravity, ejecta fallback etc). For a body to be blown apart the entire body has to be within that transient cavity. No observed impact crater from Stickney on Phobos to SPA on the Moon or Sputnik on Pluto comes close to that. If you can see a crater it was nowhere near blowing the object apart. Also, the drawings of Pluto are by James Tuttle Keane. Phil James Tuttle Keane did a nice job at rendering the formation of sputnik so the impacter needs to be really really huge (almost the same size as pluto) and moving fast to destroy pluto |
|
|
Lo-Fi Version | Time is now: 26th September 2024 - 12:05 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |