Help with the position of Charon in Pluto's sky |
Help with the position of Charon in Pluto's sky |
Sep 18 2015, 02:31 PM
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#1
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Member Group: Members Posts: 401 Joined: 5-January 07 From: Manchester England Member No.: 1563 |
Hi all, I hope this isn't out of place, mods please move or delete this if it is. I've started doing an acrlyic landscape painting set on the 'coast' of Tombargh Regio, Pluto (below - very much a work in progress). I want to get the sky accurate if I can, but I'm having trouble working out where Charon would be in the sky from a give location. Can anyone help? I'm having trouble even figuring out where the sub-Charon point is on the most recent images, wich would at least give me a start point.....
Glaciers_of_Pluto__4_.tif ( 663.51K ) Number of downloads: 378 -------------------- |
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Sep 18 2015, 02:46 PM
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#2
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Member Group: Members Posts: 555 Joined: 27-September 10 Member No.: 5458 |
Unfortunately, Charon is tidally locked to the opposite side of Pluto so from that view of the region, you would never see Charon. However, its also a painting and sometimes factual accuracy can be ignored for artistic intention.
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Sep 18 2015, 04:53 PM
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#3
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Senior Member Group: Members Posts: 1578 Joined: 14-October 05 From: Vermont Member No.: 530 |
Right, way back in planning the flyby, the geometry for allowing both Pluto and Charon to eclipse earth as seen from NH was the paramount concern for radio science, so Charon ended up being on the opposite side and not particularly close.
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Sep 18 2015, 05:17 PM
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#4
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Member Group: Members Posts: 401 Joined: 5-January 07 From: Manchester England Member No.: 1563 |
Never mind, I do an awseome Milky Way! Thanks guys :
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Sep 20 2015, 04:36 AM
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#5
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
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Sep 20 2015, 04:46 AM
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#6
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Member Group: Members Posts: 555 Joined: 27-September 10 Member No.: 5458 |
Maybe I'm a tad inexperienced with Celestia, but I haven't seen that side bar before John. Is that an addon and if so, where could I get that?
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Sep 20 2015, 05:08 AM
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#7
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
one of the advantages of being the person that checks NEW addons
( the old ones are ??? iffy sometimes on linux ) the extra on screen tools are the LUA tools , not new and you need the LAST version of LUA the current lua it a bit too new . the gui is the last SVN-5229 using the QT4 GUI not the gtk / glut of years past the lua tools "Lua Edu Tools 1.2 Beta8 (for Celestia 1.6.0)" http://celestiamotherlode.net/catalog/utilities.html on linux there is a minor bug that got through copy a few icons to a new folder , no biggie ( for that compass in the bottom center ) right now the only forum is http://www.celestialmatters.org/ and the upcoming release of "Celestia SCI ence " spice and naif short tutorials are http://forum.celestialmatters.org/viewforu...dc0fc3044c1f821 |
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