The Great Andromeda Galaxy or M31, is the largest and farthest away object one can see without optical aid. It is some 2.5 million light years from us and is over 100,000 light years in diameter.
Canon 350 D unmodified
30 x 300 seconds ISO 800
Stellarvue SV80S @ f/4.8
captured at the NHAS dark sky site YFOS
Calibrated and stacked with dark frames in IP 2.82
Post processed in PixInsight Standard
This was the winning image in the September 2008 Astrophotogallery Challenge in the Large Mod category. Please check out the website and the many fine images there.WWW.ASTROPHOTOGALLERY.ORG