Observations of emission, reflection and dark nebulae, H II regions.
IC 5146 Emission and Reflection Nebula in Cygnus.
The Bubble Nebula is an ionized hydrogen emission nebula 7,800 light years away, created by stellar winds from the Wolf-Rayet […]
Melotte 15 is a very young star cluster in the IC 1805 nebula, also known as the Heart Nebula. […]