Moderate Relating to the stars or celestial objects, particularly in the context of their apparent motion in the sky. Clear All
2 Example Sentences Showcasing the Meaning of 'Sidereal'
The ancient astronomers relied on sidereal observations to create celestial maps that guided navigation across the vast oceans.
During the stargazing event, the guide pointed out sidereal constellations, sharing stories from different cultures about these star formations.
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