Observable Universe → Pisces-Cetus Supercluster Complex → Laneakea Supercluster → Local Group → Milky Way
The Orion Arm is a spiral arm of the Milky Way. It contains the following stellar belts, open clusters, nebulae and solar systems:
- Gould Belt (stellar belt)
- Butterfly Cluster (open cluster)
- Ptolemy Cluster (open cluster)
- Dumbbell Nebula (planetary nebula)
- Winnecke 4 (solar system)
- Orion Molecular Cloud Complex (stellar cloud complex)