Why Is There a Two Day Difference in the Sidereal

question 55

Multiple Choice

Why is there a two day difference in the sidereal and synodic months?

• A)The Moon speeds up at perigee, and slows down at apogee.
• B)The sidereal day is four minutes shorter than the solar day, and it adds up.
• C)The Earth is closer to the Sun during the sidereal month.
• D)The Earth is also revolving around the Sun, so the Moon must "catch up."
• E)The Moslem lunar year is only 354 days long, on average.

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