My image of M13, the Great Hercules Globular Cluster, was taken with my Canon 75-300mm zoom lens at 300mm. The lens was mounted on my Canon 1300D DSLR camera and attached to my Star Adventurer 2i Pro tracking mount. The settings were 40 seconds exposure at ISO 800 and f/6.3. I took 200 images and 30 flat frames, but no dark frames. All images were stacked in Sequator and edited in Siril and GIMP 2.10. I used an intervalometer to control the camera and a Bahtinov mask to focus on a bright star.
Click on the image to get a closer view
M13
Chris Playle
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