This is my first experiment with time lapse astrophotography. The camera is a Canon s90 hacked with CHDK to enable interval shooting.
All frames are ISO 200, 30 sec exposure, 32 sec interval, f2/8.
Not quite sure what the pink thing is in the upper left corner, might be a CCD flaw. I only got half the shots I was expecting because the cold sapped 60% of my battery power (-20F w/ windchill), but at least the cold is good for noise reduction. Maybe now I can justify getting an SLR!
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