Fireworks Galaxy NGC 6946 . ... Also known as NGC 6946, the big, beautiful spiral galaxy is located just 10 million light-years away, behind a veil of foreground dust and stars in the high and far-off constellation of Cepheus . ... In this colorful cosmic portrait , the galaxy's colors change from the yellowish light of old stars in the core to young blue star clusters and reddish star forming regions along the loose, fragmented spiral arms. ... NASA Web Site Statements, Warnings, and Disclaimers . ...