[wiki] Messier 7 - also designated NGC 6475 and sometimes known as the Ptolemy Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked eye, close to the "stinger" of Scorpius (also called Scorpion). With a declination of -34.8°, it is the southernmost Messier object..
Canon 1100D, GSO 8" F4 MPCC, Astronomik CLS filter. HEQ5Pro Mount.
15 x 220sec exp, Darks, Flats, Bias, Dark Flats all applied. Stacked in Deepsky Stacker 3.3.4. Final image adjustments in Photoshop CS6.
This is the first image taken through the telescope after I had carefully collimated the mirrors, this time using the catseye collimation tools properly.
Taken in a very light polluted backyard of Adelaide.
Also added a slightly less stars image with more colour.
Bigger image..
http://www.astrobin.com/full/100330/0/