Back on Page 4 of this thread is a brief excerpt about Coma Berenices. At the bottom of the constellation lies Messier Object M-53.
This is the equivalent of an exposure that is a little less than 17 minutes.
A Closer Look on a different day:
This is the exposure equivalent of a little more than 45 minutes.
NASA used the Hubble and got a pretty good shot of M53:
https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-53/
About Berenice: https://www.constellation-guide.com/constellation-list/coma-berenices-constellation/