M55: Globular Star Cluster M55: Cúmulo Globular de Estrellas
The fifty-fifth entry in Charles Messier's catalog, M55 is a large and lovely globular cluster of around 100,000 stars. Only 20,000 light-years away i... La quincuagésima quinta entrada en el catálogo de Charles Messier, M55, es un grande y hermoso cúmulo globular de aproximadamente 100.000 estrellas. A...