This closeup shows the center of the large Soul nebula in Cassiopea. Imaged over several nights in October_December 2016 S2-Ha-O3 mapped as RGB RGB for the star colors Ha - 30X900sec O3,S2 - 20X600 sec each RGB - 30 min each Total about 16 HRS All images at Bih 2 = 0.89" per pixel (so 16 hrs at bin 2 equals 64 hrs in bin 1...) C14 equipped with Starizona SCT corrector (operating at F7.2) ASA DDM60 - no guiding :) Imaged from my home in Gan-Yavne ISRAEL