Definition, Meaning & Synonyms

sideral

Adjective

/sɪˈdɪərə l/

Definition

Relating to the stars.

Examples

The sideral year is based on the Earth’s orbit around the Sun, measured relative to the fixed stars.
Sideral navigation helps sailors determine their position at sea using the stars.
Many ancient civilizations relied on sideral observations to create their calendars.

Meaning

The term ‘sideral’ refers to anything that pertains to the stars or is measured by the stars. It is often used in contexts related to astronomy or celestial observations.