In which constellation is messier objects M45 located? It is urgent. Thank you.

The beautiful Pleiades Cluster (Seven Sisters Open Cluster) is famous for its striking blue reflection nebula, which passes through the cosmic dust cloud only 400 light years away. It is located in the night sky in the direction of Taurus, on the arm of Orion in our galaxy. Seven Sisters has nothing to do with cosmic dust clouds, but passes through the same sky.

Image source:? Adam Brock, Stewart Observatory, University of Arizona

Since ancient times, people have thought it is a dense cluster. Galileo first outlined the star clusters with a telescope, but these stars are too dark for us to see with the naked eye. Charles Messier recorded the location of this cluster and listed it as the 45th object in the famous messier objects list. In Greek mythology, the Pleiades is the seven daughters of Atlas, the titan god, and the unicorn, the sea fairy. Their parents' names are included in the nine brightest stars in the cluster. This deep and wide telescope image covers more than 20 light-years in the Pleiades cluster.

Brief Introduction of messier objects HD Atlas