formal 5K

Astronomer

UK //əˈstrɒn.ə.mər// US //əˈstrɑː.nə.mɚ// Pronunciation

Definition

A scientist who studies celestial bodies, such as stars, planets, and galaxies.

Listen to definition

In simple words: A scientist who studies stars and planets.

Examples

• The astronomer discovered a new exoplanet orbiting a distant star.
• Many children dream of becoming an astronomer when they grow up.
• The renowned astronomer published her findings in a major scientific journal.
• An astronomer uses telescopes to observe celestial phenomena.
• Last night, the astronomer gave a lecture about black holes.

Usage notes

Used in scientific and academic contexts; not commonly used in casual conversation. Suitable for discussions about space or science.

Grammar pattern

noun + 'is' + noun

Memory hint

Think of 'astro' as stars, and remember: an astronomer sees them!

Collocations

• professional astronomer
• amateur astronomer
• renowned astronomer
• observational astronomer
• theoretical astronomer

Synonyms

• astrophysicist
• cosmologist
• stargazer
• celestial observer
• space scientist

Common mistakes

• Confused with 'astrologer', who studies horoscopes.
• Used in non-scientific contexts incorrectly.
• Incorrectly pluralized as 'astronomerss'.