To use the sky chart, orient it so that the direction you are facing is at the bottom. Zenith, the point directly overhead in the sky, is marked with a cross at the centre of the horizon circle.
To use the sky chart, orient it so that the direction you are facing is at the bottom. Zenith, the point directly overhead in the sky, is marked with a cross at the centre of the horizon circle.
Copyright © 1995–2023 by L.M. Stockman and David Harper