Object name: BERKELEY054
Berkeley 54 is a very old star cluster, as open star clusters go, with an age of about 4 billion years. Most clusters of this age have long since been torn apart. This one is still quite condensed and a lot more obvious than most of the Berkeley clusters. I wonder how many stars its lost to the galaxy in those 4 billion years. Was it a much richer cluster then? WEBDA puts it at 7500 light-years and says it is reddened by 0.77 magnitudes. Both age and reddening explain its lack of blue stars. It is located in Cygnus about 4 degrees south and a bit east of the North American Nebula.