ngc 6992 qhy9 sw100ed narrrow band by Giovanni Leoni Via Flickr: NGC 6992,reprise of 01/08/2016 at Cesena archery camp suburban sky, very good transparency, all in narrow band ha 7nm O3 8nm s2 8nm with Qhy9 mono ccd and SkyWatcher 100ed 500mm quintuplet, ioptron ieq46pro mount, 7frames ha 700sec, 7frames o3, 4frames s2 700sec, guided with qhy5lII xoff guide, cfw2m qhy filter wgeel. acuired with maximdl pro5.25, fwhm 1.27, pre processed in maximdl and astroart 4, elaboration photoshop CC, astrionomy action Carboni's, Nik collection pro photoshop.














