NGC 7635, also called the Bubble Nebula, is an emission nebula lit from within by the hot, young star SAO 20575.

One of the extreme northern sky’s most entertaining deep-sky objects, the Cat’s Eye Nebula in Draco (NGC 6543), is a planetary nebula with a high surface brightness. Discovered by William ...

With binoculars or a wide-field scope, emission nebula IC 1396 is a vast playground, filled with many other interesting ...

High at northern latitudes lies a spectacular and unique nebula you should observe if you're not already familiar with it. The Iris Nebula (NGC 7023) is an odd reflection nebula in Cepheus ...