Messier 44 is a so-called open star cluster. It is also known as the Beehive Cluster and is listed in other catalogues. For example, NGC 2632 or Cr 189. The latest measurements have shown that the cluster is 182 parsecs, or 593.6 light years, away from Earth. Estimates put its age at around 600 million years.

In September 2012, two planets were discovered orbiting different stars in M44. These planets have been given the catchy names Pr0201 b and Pr0211 b. The 'b' indicates that they are planets. These planets are probably so-called 'hot Jupiters'. Such planets have similar characteristics to Jupiter or Saturn, but have significantly shorter orbital periods. They are therefore much closer to their star.

Image on Astrobin: https://www.astrobin.com/7ml9x7/
Image on Instagram:  https://www.instagram.com/p/C3PzwI1tAU7/?hl=de&img_index=1

Sources: 
https://en.wikipedia.org/wiki/Beehive_Cluster
https://en.wikipedia.org/wiki/Hot_Jupiter