M94

M94 or NGC 4736, also known as the Croc's Eye Galaxy or Cat's Eye Galaxy, is a spiral galaxy in Canes Venatici. It's approximately 16 million light-years away and is notable for its distinct outer ring structure, which is not a closed ring but rather a complex structure of spiral arms.

Taken over 2 nights in LRGBHaOiii. 

Click on the image to get a closer view

M94 The Croc's Eye Galaxy

John Evans