M52 in Cassiopeia


Scope: C8  f/2.8; Location:  Del Mar CA;  4 Oct. 2004; Camera: ToUcam SC3

Exposure: 18 x 10 sec  and 16 x 3 sec Luminance exposures with Baader IR Block Filter; 15 x 10 sec RGB 

Processing: All exposures captured  in K3CCDTools. Alignment and stacking was done with Registax and saved as FITs. LRGB channels were co-registered in Astroart. Luminance and Color channels were scaled and rough color balanced in Astroart.  The shorter Luminance exposure was combined with the longer one to reduce star bloat in the Luminance construction. Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB). Color balancing and final touches were done in Photoshop. SGBNR (PixInsight LE) was used to smooth background noise on the luminance channel. Resized to approximately 800x600.

This image was an unguided exposure. This exposure was taken in a fairly light polluted area with haxe and clouds so the image quality was degraded somewhat.. This is one of two Messier open clusters in Cassiopeia (along with M103).  Horizontal FOV is about 32'.


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