OPEN CLUSTER M52 (NGC 7654)

Also visible in the upper right is the Bubble Nebula, NGC 7635 (Sh2-162)

This image was taken from a dark site near the Chiracahua Mountains in Southern Arizona on June 24, 2007, shortly before sunrise.

Equipment:  William Optics 105mm refractor at f/5.6, CGE Mount, ST-10XME with AstroDon filters - Red = 9x2min, Green = 6x2min, Blue = 4x2min.

(click on image for larger size):

Here is another image of the same field (cropped to cut vignetting at the corners), taken from my backyard on August 19, 2006, using similar equipment except the telescope was at f/7 and the filters were Custom Scientific R,G, and B: