This is a bright cluster and is also known as NGC6341. It can easily be seen even with a small telescope.

This was taken with a MN190 Maksutov-Newtonian telescope from the the city. M92 is a bit tricky to photograph because the core is very bright. In long exposure frames it tends to over-saturate. But shortening the exposure time causes the surrounding stars to start disappearing. So it is a compromise. In this case, the core did end up a bit too bright but a lot of the surrounding stars appeared.