noaoann04014 — Announcement

M39

29 June 2004

 This loose, widely spaced open cluster is found in the constellation Cygnus, about 800 light-years away. Also known as NGC7092, it has around 30 members and is two to three hundred million years old. This picture is a combination of 33 dithered frames in BVR colors taken with the Mosaic camera at the WIYN 0.9-meter telescope on Kitt Peak, near Tucson, Arizona