Daily Archives: May 16, 2018


Do Whales Play Hockey?

From the first dark site star party of 2018 this past weekend, this is the Whale and Hockey Stick galaxies (NGC4631 and 4656, respectively).  It’s also my first LRGB image with the new FLT132 telescope, and I’m happy to report that the L frames were just as sharp as the RGB (which was not the case with the previous ‘scope, due to residual chromatic aberration).  It might not have been a good test of chromatic aberration because less-than-ideal seeing made all frames less than perfectly sharp. I shot more than 7 hours of this target, but discarded about 2 hours […]