The semimajor axis of Earth's orbit is:
A) 10⁶ km.
B) 1 AU.
C) 1 pc.
D) 1 kpc.

Name: The semimajor axis of Earth's orbit is: A) 10⁶ km. B) 1 AU. C) 1 pc. D) 1 kpc.
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Question

Quizplus · Accepted Answer

The semimajor axis is the average distance between Earth and the Sun, and it is defined as 1 astronomical unit (AU), which is approximately 149.6 million km. Therefore, option B is the correct answer. Options A, C, and D are incorrect because they do not correspond to the semimajor axis of Earth's orbit.

The Semimajor Axis of Earth's Orbit Is