Hercules Globular Cluster (M13) imaged with a 4 in refractor at 565 mm focal length, an ASI 533MC cooled astronomy camera, with an ASI 174MM guide camera. Tracking is done using a DIY tracker built using an Arduino and a stepper motor controller. Imaging done in NINA, guiding in PHD2, and processing in SIRIL. This is a bright and relatively easy to find target.
For a complete list of astrophoto images, click here.
Night Sky in Focus © Anthony Urbano | Bacoor, Philippines