M31 & SATELLITE GALAXIES by Alan Tough Via Flickr: The Andromeda Galaxy from November 2008. Imaging equipment: Sky-Watcher 80ED, HEQ5 mount, Canon EOS 300D at prime focus, Astronomik CLS filter. Exposure details: 6 x 12-minute sub-frames @ f/7.5, ISO-800. Guiding equipment: Sky-Watcher 100ED, StarShoot Autoguider.















