I would like to simulate the three object distance, specifically the distance of the moon to both, sun and earth for further investigation into tide prediction.
What would be a good starting point to browse? Do any (preferably python) libraries exist for this? My use is to query the function with a date and it would spit out the distance.
A first model I would be happy to start with would be basic circular trajectories and expand to elliptical & inclinations from there.