- An expert in or student of astronomy.More example sentences
- Titania was discovered in 1787 by the astronomer William Herschel.
- John Herschel was the son of William Herschel, the astronomer who discovered Uranus.
- Here, Hubble astronomers have uncovered, for the first time, a population of infant stars.
More definitions of astronomerDefinition of astronomer in:
- The US English dictionary