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Old 12-03-2010, 08:15 PM
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Tunnel Vision

AlexN is offline
Join Date: Mar 2008
Location: Brisbane, Australia
Posts: 6,708
Steven - OAG + RGH for narrowband work. Self guide for RGB data. AO-STX for L data... You know the drill, you use ST10-RGH-MOAG-AO do you not?

Fred - I must have had a few too many beers... I took a series of darks with my ST8300 at -10, and another set at -15 and the ADU counts were less than 50 ADU's apart even at 15min duration... Cooling is required, but there is a point of diminishing returns... SBIG/Self-Guide/AO forever!
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