Canon 350D Hap Griffin Baader Mod 17x180sec at iso 1600 30 Darks/Flats/Bias APM/TMB 130/780 with APM Field Flattener
Open cluster Messier 103 (NGC 581), lower left, is one of the "latest additions" (together with M101 and 102) included from Pierre Méchain's report.
M103 is one of the more remote open clusters in Messier's catalog, at about 8,000 light years.
I purposefully left this image widefield to include open cluster Trumpler 1, also known as Collinder 15, in the upper right. Distance 7172 light years, age 30 million years.
