NGC 6040a spiral galaxy type SBc in Hercules (center right) with NGC 6040b type S0 just below it.
This pair is also cataloged as Arp 122 in the class of E and E-like galaxies close to and
perturbing Spirals. Taken June 9, 11 and 12, 2007 with a DSI Pro II and Outback Cooler on a
C8NGT (8" Newtonian f5). This is cropped and resampled from a larger image of Abell 2151 see:
http://www.pbase.com/jshuder/image/106325870. All subframes were 180 sec. The RGB subframes
were also used to make synthetic L subframes (sL), which were then used in the total stack of
images to create the final L image resulting in the following total exposures (L+sL):R:G:B (min) =
(171+87):87:87:87. Color balance was achieved via numerically scaled channels. Captured with
Envisage, calibrated and sigma combined in Iris with other processing using FITZ, PixInsight LE and
Photoshop CS. North is up.