M7 is an open cluster of stars in the constellation of Scorpius, easily detectable with the naked eye from a dark sky location. M7 has been known since antiquity, being first recorded by the 1st-century Greek-Roman astronomer Ptolemy, who described it as a nebula in 130 AD.
This image however was captured on Wednesday night (31 July) with my Vixen VC200L (with f6.4 reducer) and an astro-modded Canon 1000D
60 x 2min dithered and calibrated subs at ISO1600. Processed with PixInsight 1.8
Hi res here:
http://www.astrobin.com/full/50231/?mod=none
Dont normally shoot star clusters, so any comments/criticism/advice are most welcome
