NGC6946: This is a very dim, 10th magnitude galaxy in Cepheus toward Cygnus, approximately ten million light years from Earth. Looking from the bright core outward along the spiral arms, the galaxy's colors show a change from the yellowish light of old stars in the galaxy's center to young blue star clusters and reddish star forming regions. NGC 6946 is also bright in infrared light and rich in gas and dust, exhibiting a high star birth and death rate. During the 20th century, at least six supernovae, the death explosions of massive stars, were discovered in NGC 6946. A small barred structure is just visible at the galaxy's core.
Copyright 2008 Mark de Regt