Spiral Nebula (Noun)
Meaning
A galaxy having a spiral structure; arms containing younger stars spiral out from old stars at the center.
Classification
Nouns denoting groupings of people or objects.
Examples
- The Andromeda Galaxy is a spiral nebula that can be seen with the naked eye on a clear night.
- Astronomers have long been fascinated by the spiral nebula in the constellation of Orion.
- The Milky Way is a spiral nebula that contains hundreds of billions of stars.
- Spiral nebulas are characterized by their sweeping arms of young stars that spiral outward from the older stars at the center.
- The Hubble Space Telescope has captured stunning images of spiral nebulas in distant galaxies.