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Old 08-05-2015, 10:02 AM
kkara4 (Krishan)
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kkara4 is offline
 
Join Date: May 2014
Location: Bellbowrie, Brisbane
Posts: 416
Quote:
Originally Posted by andyc View Post
Thanks for the info Joe - though for off-earth shadow events like eclipses of Jupiter's moons (or even of our own Moon), or the shadow of one Jovian moon falling on another, the timings are identical wherever you are on Earth, especially for the events beyond the orbit of the Moon. Geometry doesn't change the fact that the object's surface itself is being shaded. Geocentric vs topocentric coordinates don't affect these, though the light travel-time matters for events at Jupiter and beyond.

Occultations are a different matter - where you are on Earth affects the geometry of the occultation, exactly as you say.


Krishan, I hope you have a success, that would be great if you did!

Dave, that looks like a useful bit of software.
Hopefully Andy! I copied the videos to my processing computer last night, ready for processing tonight/tomorrow.

I completely forgot about the non-negligible light travel time from Jupiter. I had GPS coordinates and UT precisely entered and synchronised respectively about 30 minutes prior to the event, so provided WinJUPOS allows for light time, etc, I should have captured the event.

The seeing is another matter...
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