Messier_13_Globular_v2b.jpg

Equipment:
Imaging Telescopes Or Lenses:
TPO 12" f/8 Ritchey–Chrétien
Imaging Cameras:
ZWO ASI2600mc PRO
Mounts:
Sky-Watcher EQ8-R Pro
Filters:
Optolong L-Pro Light Pollution Telescope 2
Accessories:
PrimaLuce Lab Esatto Robotic Focuser 3"
Software:
Astro Pixel Processor APP · Photoshop · SharpCap Pro Version 4.0
Guiding Cameras:
QHYCCD PoleMaster EQ Mount Polar Alignment Camera

Exposure time: 55 minutes

https://www.astrobin.com/gaqqs4/

Last weekend, I was finally able to use the TPO Ritchey Chretien 308mm astrograph, after last month's collimation efforts, which paid off.

The weather cleared for one night, allowing me to capture images of several deep-sky objects. Not sure how they will turn out, I didn't use any calibrated frames, so I may have to do a bit more image processing.  

Here is one of my first images, the Great Globular Cluster in Hercules. Unfortunately I should have processed a bit more to remove those trails in the image. 

Messier 13, also designated NGC 6205, is visible in the northern hemisphere, even in light-polluted skies, M13 is visible with just a four-inch aperture telescope.