Best Sharpless

The Cave Nebula is Sh2-155, a faint Cepheus H II region and Caldwell 9 object in the Cep OB3 complex, listed in the 1959 Sharpless catalogue.

The Lion Nebula is Sharpless 2-132, a diffuse nebula in Cepheus about 10,400 light-years away, ionized by Wolf-Rayet and hot OB stars.

A compact bipolar emission nebula in Cygnus shaped by jets from the embedded massive protostar S106 IR, giving it a distinctive hourglass silhouette.

Sh2-188 is an asymmetric planetary nebula in Cassiopeia, notable for a bright bow-like rim caused by strong interaction with interstellar gas.

An emission nebula in Cepheus energized by two embedded Wolf-Rayet stars, whose narrowband hydrogen-alpha imagery reveals a mane-and-face profile resembling a lion.

Sh2-216 is an ancient planetary nebula in Perseus, notable as the closest known planetary nebula at about 129 parsecs from Earth.

A faint emission bubble in Canis Major driven by the stellar winds of Wolf-Rayet star EZ CMa, spanning roughly 60 light-years and catalogued in Sharpless's 1959 HII region list.

An emission nebula in Cassiopeia with curved, claw-shaped ionized hydrogen structures, part of a larger star-forming complex associated with the region near open cluster NGC 7538.

A diffuse emission and reflection nebula in Cepheus at the edge of a large molecular cloud, where hot young stars illuminate a cave-like opening in the surrounding dark gas.

A large circular H II region in Orion centered on Lambda Orionis (Meissa), sculpted by stellar winds and UV radiation from the central O-type star and its associated cluster.

Crescent-shaped planetary nebula in Cassiopeia whose asymmetric dolphin-like arc is caused by the central white dwarf's supersonic proper motion through the interstellar medium, creating a one-sided bow shock.

A large, low-surface-brightness emission nebula in Orion included in Stewart Sharpless's 1959 H II region catalog and first identified by amateur astronomer Harold Lower.