Sketching M36 - Pinwheel Cluster in Auriga December 30, 2019 8" SCT adirondacks astronomy +8 Astronomy Sketch astronomy sketching astrosketchography Auriga M36 Messier 36 Open Cluster Sketch sketching Sketching Deep Sky Objects 8" SCT adirondacks astronomy Astronomy Sketch astronomy sketching astrosketchography Auriga M36 Messier 36 Open Cluster Sketch sketching Sketching Deep Sky Objects