GALLERY 74 p p SATELLITE GAL A X Y p CELESTIAL ROSEBUD Chris Schur Although overwhelmed by the enormous Andromeda Galaxy (see facing page), M110 is a dwarf elliptical galaxy that Charles Messier faithfully sketched but did not include in his iconic list of deep-sky objects. DETAILS: Orion 10-inch Newtonian astrograph with SBIG ST-10XME CCD camera and LRGB filters. Total exposure: 1½ hours. Peter Jenkins NGC 7822, a young star-forming complex in Cepheus, encompasses the emission region Sharpless 171 and a cluster of young stars known as Berkeley 59. DETAILS: Officina Stellare 115-mm Hiper Apo with Atik 383L+ CCD camera. Total exposure: 11.3 hours through Astrodon narrowband filters. S E P T E M B E R 2 0 1 7 * SK Y & TELESCOPE