IPB

Welcome Guest ( Log In | Register )

Charon shine on pluto's farside, is there any charon shine on pluto?
TrappistPlanets
post 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
Attached Image




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
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
Phil Stooke
post Nov 18 2021, 10:11 PM
Post #2


Solar System Cartographer
****

Group: Members
Posts: 10162
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 PD: 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)
Go to the top of the page
 
+Quote Post
TrappistPlanets
post Nov 19 2021, 12:12 PM
Post #3


Member
***

Group: Members
Posts: 127
Joined: 15-April 21
Member No.: 9009



QUOTE (Phil Stooke @ Nov 18 2021, 10:11 PM) *
"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
Go to the top of the page
 
+Quote Post

Posts in this topic


Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 16th May 2024 - 02:25 PM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and 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.