[4] John Louis Emil Dreyer, the compiler of the New General Catalogue, described the object as "pretty bright, small".

NGC 6751 is an easy telescopic target for deep-sky observers because its location is immediately southeast of the extremely red-colored cool carbon star V Aquilae.

NGC 6751, like all planetary nebulae was formed when a dying star threw off its outer layers of gas several thousand years ago.

[2] The winning image of the 2009 Gemini Astronomy Contest shows a nebula at the top left of NGC 6751.

[7] This 80 x 40 arcsec nebula was discovered in 1990 by Hua & Louise at the Newton focus of the Foucault telescope, 120cm in diameter at Observatoire de Haute Provence (O.H.P.)