Mise en station is a little free utility for amateur astronomers. It helps you to polar align your equatorial mount using the drift alignment method. In fact, "Mise en station" basically acts as a reticle with motion tracking capabilities. I wrote this software for my own needs (I do not see the pole star from my balcony! ) and I wanted to use my Philips SPC900NC webcam on my laptop Mac. Many other webcams might work but this has not been tested. Try and see!
Mac OS X 10.4.11 or later