However, there is some contention to this claim, as Isaac Roberts in 1891 did suggest that M76 might be similar to the Ring Nebula (M57), being instead as seen from the side view.
Namun ada pertentangan mengenai hal ini, karena Isaac Roberts pada tahun 1891 menyatakan bahwa M76 menyerupai nebula cincin M57, yang dilihat dari sebelah sisi.