The sidereal drive of a telescope mounting must turn the telescope
A)southward about the polar axis.
B)eastward about the polar axis.
C)westward about the polar axis.
D)northward about the polar axis.
E)None of the other choices are correct.

Question

Quizplus · Accepted Answer

The sidereal drive of a telescope must turn the telescope westward about the polar axis to compensate for the Earth's rotation eastward, allowing the telescope to track stars as they appear to move across the sky.

The Sidereal Drive of a Telescope Mounting Must Turn the Telescope