Abell 71 (Sh 2-116) is a planetary nebula located in the constellation Cygnus. Initially identified as part of George Abell’s catalog of planetary nebulae, its nature has been the subject of debate. Some studies suggest that Abell 71 is not a true planetary nebula but rather an H II region, a large cloud of ionized gas where new stars are born. The nebula exhibits a distinct circular shape with filamentary structures and is illuminated by a central star. Its classification remains ambiguous due to its unique characteristics, and ongoing research aims to clarify its true nature.  Written by ChatGPT.