Hi Gerald, I always loved Cartes du Ciel when I was a Windows user. I did try to get the Windows one working under CrossOver Mac but that didn't work at all well.

There is an OS X DMG available from here: http://www.ap-i.net/skychart/index.php. This is a simple drag-and-drop install but appears to be Intel-only as it gave me an error that my platform was not supported when I tried to run it on my G5 PowerMac. I must try it on my Laptop later.

Bart.