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- DictionaryAs·tron·o·mer/əˈstränəmər/
noun
- 1. an expert in or student of astronomy.
noun
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the ori... Wikipedia