Messier 20171214_2221_M31_60D_WOStar71_f348mm_20x4min_ISO1600-unc_SSE_med_1920 ◄ Back Next ► Picture 1 of 17 Andromeda nebula. Canon EOS60D, William Optics Star 71 apo, f=348mm, 30x5min, ISO1600. Windy conditions, with poor seeiing.