Polar images › Forums › Computing › Planisphere for demonstrating precession of the equinoxes › Polar images 19 March 2019 at 12:59 am #580874 Dr Paul LeylandParticipant Thanks Nick, they are beautiful. When I get chance (not for a couple of weeks or more) I’ll write a circular-arc Hough transform to find the NCP in each image. Assuming it works well I’ll make the source code available here.
