QQuestionAstronomy
QuestionAstronomy
"Why is there a 4 -minute difference between the solar day and the sidereal day?
A. because the Earth's rotation is variable, due to the pull of the Moon
B. because the stars slowly change their orientations in the Galaxy
C. because the Earth is going around the Sun in the course of a year
D. because the Earth's axis is tilted by about 23 degrees
E. no one knows the reason; we just have to accept the difference as an unsolved mystery"
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Answer
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Step 1Let's solve this step by step:
Step 2: Understand the Sidereal Day vs.
Solar Day - A solar day is the time it takes for the Sun to return to the same position in the sky (approximately 24 hours) - A sidereal day is the time it takes for the Earth to complete one full rotation relative to the fixed stars
Final Answer
The 4 -minute difference between solar and sidereal days occurs because the Earth is going around the Sun in the course of a year.
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