Nothing can be on a nebula. A nebula is gases and plasma. It is where stars are produced. So nothing is on the Dumbbell nebula. because the elephant sat on your mom. LOL

M27 (dumbbell nebula) the dumbbell nebula is also known as messier 27,M27 or NGC 6853 is a planetary nebula is in the constellation Vulpecula at a distance of about 1,360 light years. This object was descoverd by Charles Messier in 1764.At it's brightness of visual magnitude 7.5 and it's diameter of about 8 arcminutes,it is easliy visible in binoculars,and a popular observing target in amateur telescopes.

The Andromeda Nebula, now known as the Andromeda Galaxy, has no discoverer as it is visible to the naked eye. The idea that it was a galaxy and not a nebular was fist proposed in 1917 by Heber Curtis and proven in 1925 by Edwin Hubble.

The Crab Nebula is a nebula.

Triffid Nebula, Eagle Nebula, Cat's Eye nebula