Definitions

1. noun

A person who studies the universe, stars, and planets, especially by observing their positions, movements, and properties.

“The astronomer spent years studying the stars and planets in the Milky Way galaxy.”

2. noun

An expert or enthusiast who studies the universe, stars, and planets in a non-professional capacity, often for recreational or hobbyist purposes.

“As an amateur astronomer, John enjoyed gazing at the night sky through his telescope.”

3. verb

To study or observe the universe, stars, and planets, especially in an academic or professional context.

“The researchers will astronomer the new planet to gather more data about its composition and orbit.”