M13

This is M13 The Hercules globular star cluster 25,000 lightyears from Earth. Located in the constellation Hercules.

 

3.8 hours with 3 minutes exposures at iso-1250

 

Taken with Unmodified Canon 60d through an Orion 8” newtonian astrograph with coma correcter, autoguided with a orion starshoot autoguider 60mm guide scope, all on a Celestron AVX mount.

 

Processing: deepsky stacker for regester, stacking. Pixlinsight: Background ext, noisexterminator, blur terminator, histogram stretch, added mask curves saturations,. Photoshop: selective color adjustments, contrast, shadows & highlights,

 

Bortel skies 4 Clarksdale Missouri

 

For a higher resolution click link: app.astrobin.com/u/jb-astro?i=7yzcs3#gallery

Done