The collimation was quite a way out when I imaged the Leo Trio 2 nights ago, so last night I was expecting to spend the whole evening trying to get good collimation. In preparation for this I had taken off the dew-shield and re-balanced the scope in the afternoon.
Come 9 p.m. and I was in the south dome observatory ready to collimate the Hyperstar 4. I turned one of the collimation screws (quite a bit) and was preparing myself for a long drawn out evening’s work twiddling collimation screws. Ran CCDInspector and nearly fainted as it showed me perfect collimation on the very first try. The magic 0, 0, 0 for X offset, Y offset and collimation. So not wanting to move anything I simply started imaging on the second setup star I was on which happened to be Denebola. So here are 30 subs at 150-seconds per sub on bright star Denebola in the constellation Leo.
