Abell 1656 Galaxy Cluster in Coma Berenices

RGB image

Click on image to enlarge

Click on image to enlarge

Red channel inverted

Taken on April 7, 2003 from my backyard in Castro Valley, Ca.

Astro-Physics AP155EDF  Imaging scope at 1085 mm FL, f/7

FLI IMG1024S Imaging camera at -40C

Astro-Physics 80mm GuideScope

SBIG ST7E NABG guide camera

FLI CFW-1 Filter wheel

Optec TCF-S Focuser

Optec IR-Blocking RGB filters

6 x 5 minutes total exposure per filter, 90 minutes total exposure time