Mercury's Orbit Has a Semimajor Axis of 0

question 160

Multiple Choice

Mercury's orbit has a semimajor axis of 0.387 au. How large would the Sun appear to be in the sky (in angular diameter) as seen by someone on Mercury, compared with its angular diameter from Earth?

• A) same size because it is the same Sun
• B) about 1.5 times larger
• C) about 6.25 times larger
• D) about 2.5 times larger

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The state of being whole, finished, or possessing all necessary components or elements.

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