Capturing Messier 2: A Bortle 8 Globular Cluster

This image showcases the stunning globular cluster Messier 2, a sight to behold even under the challenging conditions of Bortle 8 skies. Globular clusters are ancient, densely packed collections of hundreds of thousands of stars, offering a glimpse into the early universe.

The Equipment Used:

To capture this celestial marvel, a specific setup was employed:

• Telescope: 130mm f/5
• Camera: Modified Canon T2i
• Coma Corrector: GSO Coma Corrector
• Mount: Celestron Logic Drive Motor for Right Ascension

Acquisition Details:

The image was built from:

• 41 light frames
• 16 dark frames
• Each exposure was 10 seconds long at ISO 800

Processing Workflow:

A meticulous processing pipeline was used to bring out the details in Messier 2:

1. Stacking: Processed in Siril.
2. Star Removal: StarNet++ was used for star removal.
3. Gradient Removal: Graxpert was employed for gradient removal.
4. Enhancement: Cosmic Clarity was used for final enhancements.
5. Color Correction & Finishing Touches: Adobe Lightroom was utilized for final adjustments and to add a subtle vignette.

The Result:

This image is a testament to the dedication and skill involved in astrophotography. Capturing such detail requires careful planning, precise execution, and a deep understanding of processing techniques. The faint light from distant stars, gathered over many exposures, is transformed into a breathtaking view of our universe.

While some discussions arose about the use of flat frames, the creator clarified that the brightness variations were intentional vignetting. Nevertheless, the image stands as a beautiful representation of a distant globular cluster.