Double Cluster in Perseus

Depicted in the lower center of the photo are two double clusters which are seen spanning roughtly 3.5 degrees across the constellation Perseus. The names of these clusters are h and Chi Persei. The contents of the clusters are much hotter and younger stars than we have in our sun. We estimate that the clusters are roughly 7,000 light years away from us. The stars in the clusters are probably 13 million years old. The red areas in the photo represent the hydrogen clouds surrounding the stars. The hydrogen is emitted from the stars.