How does the Hubble telescope point itself in different directions to image various stellar objects?
In: Physics
It uses reaction wheels to maintain its angles and pointing direction. Fuel is used to maintain its position in space, or for large movement’s. Which won’t really be needed once it’s in the physical location in space they want it.
A reaction wheel is like a weighted bike wheel, it spins at say 1000 rpm. To rotate in a direction it spins faster or slower. Each satellite has multiple reaction wheels in multiple axis to give it full rotation control.
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