The areas of the cluster that appear green are mainly composed of gas, while the parts that seem to be red are made of dust.
Nebula | nebula | Crab Nebula | Cat's Eye Nebula | planetary nebula | Nebula Science Fiction | Nebula (band) | Nebula Award for Best Novella | Gum Nebula | Nebula Records | Nebula Award for Best Novelette | Homunculus Nebula | Detail of Peiresc's notes recording his first observation of the Orion Nebula | Carina Nebula | Boomerang Nebula | Artist's conception of OGLE-TR-10b with Lagoon Nebula |