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nuki

simulating celestial bodies

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Doing some shots of planet earth where I'd like to have plausible transformations for the sun, moon, earth (ideally including its axis wobble) and star-backdrop (rotation only) relative to each other. Since there's different models in respect to their origin and accuracy the matter is a bit confusing for me to untangle. Hence I was hoping someone here might have attempted something similar and could point me to a comprehensive resource.
In the end I'd like to have a float slider to adjust datetime driving an approximation of the mentioned celestial bodies' transformations.

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@nuki something like this --Celestial mechanics--I have Old File very Old

 

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sure - would be great if you're willing to share! in case you remember any resources you used that'd be helpful too.

fyi - just found this

Edited by nuki

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hey, thanks for your links! After some digging through what NASA has to offer I think I will either go with using their HORIZONS system (super accurate but I'd have to fetch and store a ton of data in a LUT) or the Keplerian approximation using the specified variables (continuous and I dont need to get into telnet).

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