Constellation: Hercules Distance: 22,000 light years
Imaged by Jean-Yves Beninger from Alqueva Dark Sky, Portugal
On 18 May 2025
Equipment: Astro-Physics Mach1 Astro-Physics AP130 Starfire EDF with 2.7" field flattener 67PF562, 819mm Camera Zwo ASI 2600MM pixel size 3.76ยต Filters R, G, B, H
RGB image
Description:
M13 is a bright globular cluster located in the constellation Hercules, about 22,200 light-years from Earth. It spans roughly 145 light-years and contains several hundred thousand ancient stars, most over 11 billion years old.
