A trio of elusive Local Group galaxies – Astronomy Now
IC 10 is a dwarf irregular galaxy that’s a member of our Local Group. Intense star formation here leads to its ‘starburst’ classification. Image: Leonardo Orazi.
Galaxies are everywhere, including within the unlikely Winter Milky Way territory of Cassiopeia. There are three well known though rather elusive Local Group galaxies found here. NGC 147 and 185 are satellites of the mighty Andromeda Galaxy (Messier 31), the Local Group’s dominant force. Though IC10 is not gravitationally bound to Messier 31, it appears to be part of the Andromeda subgroup, along with Messier 33, the Triangulum Galaxy.
AN Graphic by Greg Smye-Rumsby.
NGC 147: a companion of the mighty Andromeda Galaxy
Dwarf spheroidal galaxy NGC 147 (Caldwell 17) is one of mighty Andromeda Galaxy’s (Messier 31) retinue. NGC 147 i...