April 5, 2016

Adventures with the Classical Cassegrain


We had wonderfully clear weather this last weekend---and no dew!  So I was able to try imaging again with the CFF 290 classical Cassegrain.  Unfortunately, I chose the first night after a front passed, and seeing was less than optimal; not all of my images worked.  I also had no firm goals for the night.  I just wanted to do some observing.  The bad seeing and thinking about what was working and what wasn't kept me up most of the night.  It was a quiet, peaceful night, though, and I was able to obtain images of M51 (10x240"), M63 (15x600") and M13 (95x30").  All images were taken through the Astronomic CLS filter.  All have been reduced in size a bit to hide the noise and the effect of less an ideal seeing.


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