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, not far ...

The sky is filled with great planetary nebulae for backyard observers. Their small size and relatively high surface brightnesses make them easy to observe in most telescopes - and decent targets on ...

In the world of deep-sky observing, we think of major classes of objects: star clusters, nebulae, and galaxies. But once in a while an exception to this classification arises as a favorite object for ...