The Pleiades. M45. The Seven Sisters of Greek Mythology. The Pleiades is a 70 million year old cluster containing about 100 stars approximately 407 light years from The nebulosity surrounding the stars indicate that these are young stars. From a dark site, some people can see the seven stars with the unaided eye. Summit County, Pentax 105SHDF APO ,Canon 30D, Nov 2006