The images have been shot by Susy Ghia using ASTRA Remote Telescope #4, a refractor 90mm f/4.5 with SBIG ST-8300M.
This is the result of four images for a total exposure of 35 minutes, I used IRIS for registering and stacking the images, also I applied the Asinh filter to stretch the image to increase the details, than with Lightroom CC I increased the sharpness and reduced the noise a little bit to make it pretty.
Continue reading “M100 with ASTRA Remote Telescope by Susy Ghia”