M81 - Bode's Galaxy
FINALLY had a clear night last night and there was no way I was going to let it pass without taking advantage of it (it's been about 5 months since we've had a clear night in Grants Pass without the fog rolling in by 10pm, if I had slept through last night I would have some serious astro-guilt to deal with). Amazingly, I didn't run into any issues with equipment or software and everything just worked. I didn't even have any problems with focus drift on the C9.25! I hauled all my stuff to a dark sky and managed to get 4 hours worth of light frames (would have had 4 more but I didn't put enough gas in the generator and it died at 2am). Fortunately, because of the dark skies, 4 hours was enough to get the S/N up to an acceptable level.
Technical info about the image:
Object: Messier 81, Bode's Galaxy
Imaging scope: C9.25 at f/6.3
Imaging FL: 1480mm
Imaging camera: unmodified Nikon D200
Lights: 41x360s (4h 6m) at ISO 1250
Calibration: 35 darks
Guide scope: Orion 80mm ED at f/7.5 (piggyback)
Guide FL: 600mm
Guide camera: Philips SPC900NC (LX modified, 2s intervals)
Other details: Images acquired with ImagesPlus Camera Control, guided with PHD (using GPUSB), calibrated and stacked using Deep Sky Stacker, post-processed in Photoshop CS4.
Photo of the imaging setup here.