is a globular cluster of stars in the northern constellation of Hercules. M92 is at a distance of about 26,700 light-years away from Earth.
M92 is one of the brighter globular clusters in the northern hemisphere, but it is often overlooked by amateur astronomers because of its proximity to the even more spectacular Messier 13. It is visible to the naked eye under very good conditions. Among the Milky Way population of globular clusters, Messier 92 is among the brighter clusters in terms of absolute magnitude. It is also one of the oldest clusters.
Photographs (March 2019) made in Zwardoń. A standard place of meetings of the Polish association of astronomy enthusiasts – Katowice dep.
Equipment: Canon EOS 6D, Sky-Watcher 200/1000 [mm] on the NEQ6 Pro.,
- Stack: APP (7 best frames),
- Processing: GIMP v2.10.14 + add-ons (Linux),
- Lights: 7 x 88[s], ISO-1000; 30.3.2019,
- Flats: 22 ISO-1000; 02.8.2019,
- Bias: 20 ISO-1000; 02.8.2019