Saturday, November 10, 2018

Rimae Between Gassendi and Mersenius Craters


Best 330 frames out of a 1000 through C11.   Camera was ASI174 with TV 2.5x barlow.   Flats were taken because the barlow had numerous tiny scratches and dust in the glass elements.    Sharpcap Pro capture software allowed a "live" dark to be taken.

Shot on 10/20/2018.    Moon was 10.4 days old.

Stacked with Autostakkert (ver 3.0.14), used wavelets in Registax and final enhancements in Photoshop.

The top crater is Gassendi and the largish crater in partial shadow to the left is Mersenius.  The mare is Humorum.

(Note to self:  Set alignpoints (AP) in Autostakkert manually.   Use approx. 300 points.   The default alignpoints resulted in vertical/horizontal line artifacts near bright features.)

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