Why Do Telescopes Have to Have a Good Motorized Drive

question 29

Multiple Choice

Why do telescopes have to have a good motorized drive system to move them quickly and smoothly?

• A) because the Earth is rotating, with the telescope attached to it
• B) because astronomers typically have to look at many objects in the sky in a few minutes
• C) because all objects in the sky vary in brightness very quickly
• D) because the telescope can then be moved out from under the clouds to where it is clear
• E) You can't fool me, telescopes never move; they stay in one position all night

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