sideral in a sentence
a.
📚 Grade Level: Grade 11, Grade 12
Definition
Sideral refers to anything related to stars or celestial bodies, particularly in the context of measuring time based on the Earth's rotation relative to the stars rather than the sun.
Sample Sentences
- The sidereal day is slightly shorter than the solar day due to the Earth's rotation on its axis.
- Astronomers often use sidereal time to keep track of the positions of stars in the night sky.
- Her interest in sidereal navigation led her to study the ancient techniques used by Polynesian sailors.
- The sidereal month, defined by the moon's orbit around the Earth, is approximately 27.3 days long.
- During the sidereal year, the Earth completes one full orbit around the sun relative to the fixed stars.