DescriptionGreenpinwheel.jpg English: simple green plastic pinwheelpinwheel, pinwheel Date 10 November 2007, 07:23:11 Source Flickr Author Tom Woodward
4-meter telescope at Kitt Peak National Observatory. Informally known as the Pinwheel Galaxy, M101 is a spiral galaxy that is seen face on. determination method:
4-meter telescope at Kitt Peak National Observatory. Informally known as the Pinwheel Galaxy, M101 is a spiral galaxy that is seen face on. determination method