ephemeris in a sentence
n.
Definition
An ephemeris is a table or data file that provides the positions of celestial bodies at specific times, used for navigation and astronomical calculations.
Sample Sentences
- An ephemeris is essential for astronomers to predict the positions of celestial bodies.
- The ancient mariners relied on an ephemeris to navigate the vast oceans under the stars.
- To accurately chart the course of a spacecraft, engineers consulted the latest ephemeris.
- This year's ephemeris provided crucial data for the upcoming solar eclipse.
- Astrophysicists often publish their findings alongside updated ephemerides for public access.
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