astronomer
n. countablen. a scientist who studies the stars, planets, and other objects in space. They often use telescopes to watch how things move in the sky.
n. a scientist who observes and studies celestial bodies and phenomena. Refers to professionals or serious amateurs engaged in the physical study of the universe beyond Earth.
The astronomer looks at the stars through a large telescope.
After years of observation, the astronomer discovered a new planet orbiting a distant star in our galaxy.
While early astronomers relied on simple visual observations, modern researchers use sophisticated satellite data and radio telescopes to map the furthest reaches of the observable universe.
From Middle English astronomer, equivalent to astronomy + -er.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Often paired with 'amateur' or 'professional' to distinguish between hobbyists and career scientists.
The astronomer told me I am a Leo.The astrologer told me I am a Leo.Learners often confuse 'astronomer' (a scientist) with 'astrologer' (someone who uses stars to predict the future).
- Nounastronomer
- Nounastronomy
Last updated May 8, 2026