Object name: NGC6819
NGC 6819 is an I1r open cluster in Cygnus. It was discovered by Caroline Herschel on March 12, 1784. William apparently never picked it up as it doesn't appear in his data. It is thought to be about 1.5 billion years old. Due to its age, most of the very hot blue stars have long since died. The remaining ones are now red giants giving the brighter stars in the cluster an orange color. Most of the rest are rather white. Its distance is about 7,200 to 7,700 light-years depending on which source you use. Being in Cygnus I expected it to be rather reddened but that wasn't the case as it was only reddened about a quarter of a magnitude.