This is a few hours of RGB on M67 in Cancer. It is one of the oldest open clusters known and is 2600 light years from Earth and about 12 light years across. I got this last night right before the moon came up in New Mexico. https://www.flickr.com/photos/49526053@N04/13901792982/ Albert -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.