Best Cometary Globules
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The Elephant's Trunk Nebula is IC 1396A, a dark globule in Cepheus about 2,400 light-years away where infrared surveys found very young stars.
A dense pillar of gas and dust within the IC 1396 H II region in Cepheus, sculpted by ultraviolet radiation from the massive star HD 206267 while harboring newly forming protostars.
An emission nebula and H II region in Cassiopeia containing the young open cluster IC 1590, notable for prominent dark Bok globules silhouetted against its glowing ionized gas.
Barnard 68 is a Bok globule and dark nebula in Ophiuchus, added to E. E. Barnard's catalogue in 1919 and opaque to visible background stars.
The Ink Spot Nebula is Barnard 86, a compact dark nebula in Sagittarius notable for its sharp silhouette beside the open cluster NGC 6520.
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.
