On 9/15/2018 1:07 PM, Mike Horvath wrote:
> I'm trying to adapt the following PDF to POV-Ray code for my
> planetarium/orrery.
>
> https://ssd.jpl.nasa.gov/txt/aprx_pos_planets.pdf
>
In Step 6 of that PDF, it gives an equation on how to convert between
ecliptic coordinates and J2000 coordinates.
What is the inverse of that equation, and how do I change it into a
series of `rotate` commands instead?
Thanks.
Mike
Post a reply to this message
|