Messier 53

This is the globular cluster M53 in Coma Berenices. I took 66 images of 300 seconds each and stacked them.

Stellarvue 152mm scope, Nikon D810A DSLR camera, Astro-Physics Mac3 tracking mount, guiding scope, camera and software.

I stretched this using Masked Stretch in PixInsight. I separated out the stars first so the bright glow of the core could be stretched more gently. I also used Blur Xterminator to sharpen the stars.