noun
- plural of megaparsec: units of astronomical distance equal to one million parsecs each
Usage: astronomy; technical
Examples
- The galaxy cluster spans several megaparsecs across.
- Astronomers measured the distance to the quasar in megaparsecs.
- The cosmic web structure extends for hundreds of megaparsecs.
- Galaxy surveys map objects within thousands of megaparsecs.
- The observable universe has a radius of about 14,000 megaparsecs.
- Dark matter filaments stretch across multiple megaparsecs.