M81 & M82

I tried a deep exposure of the area around the M81/M82 pair with my Zenithstar astrograph. I had earlier the night tried to get a few hours on the California nebula, Unfortunately, a lid on my pc-box blew off and slammed into my mount. Made PHD loose its star and the rest of the frames where "jittery" at best. So I settled for trying this pair without guiding. Just to make sure the same time didn't happen again. I managed to get 4 hours of good exposures.

Tech specs : Pentax K5, ISO 400, 81x3 min unguided, Williams Optics Zenithstar F/4.9 5-element, Celestron AVX mount, 20 flats. Stacked with DSS, processed in PS.