Sidereal
Pronunciation: /ˈsaɪdˈɹiɫ/
Sidereal (adj)
- Related to measuring time by the apparent movement of stars, not by the Sun.
- Used for directions or coordinates based on the positions of stars in the sky.
Sidereal (adjective)
Examples
- The sidereal clock measures time by the stars.
- Astronomers use sidereal time to track the sky accurately.