Which of the following would an astronomer use for measuring the distance between objects in our solar system?
A)light-year
B)astronomical unit
C)Doppler shift
D)speed of light

Question

Quizplus · Accepted Answer

An astronomical unit (AU) is a unit of length used to measure distances within the solar system. One AU represents the distance from the Earth to the Sun, which is approximately 93 million miles or 150 million kilometers. Astronomers typically use AU to measure the distances between planets, comets, and other objects within the solar system.

Which of the Following Would an Astronomer Use for Measuring