The Footprint Nebula (Minkowski’s Footprint) is a bipolar protoplanetary nebula located approximately 8,000 light-years away in the northern constellation of Cygnus. It has an apparent magnitude of 11.7 and an apparent size of 8 by 16 arcseconds. It is catalogued as Minkowski 92 (M1-92). The protoplanetary nebula has a prominent pair of onion-shaped lobes extending… Read More »Footprint Nebula (M1-92)