M 92 - Globular Cluster

Fusion of two images:

1) acquired in 2018-05-11 through my Canon EOS 60Da + Canon EF 400mm f / 5.6L:

376x30" ISO 1600 = 188min;

2) From "One Click Obs" from Telescope Live (IC Astronomy Observatory:

Officina Stellare 700 RC F8).

It is an LRGB image from 2/2/2/2 exposures of each filter for 300" each = 40min;

removal of "hot pixels" and other defects

with PhotoShop and PixelMath in PixInsight...and with the merger.