In the meantime here's a timelapse from a mere 7 years ago of a "top end change" taking place on the same telescope. I gather it's rather less frequent now, but they used to go through this process roughly once every two weeks.
https://youtu.be/EA_2CXATBSw
#Astronomy #Astrodon #Telescope #AngloAustralianTelescope #AAT #SidingSpringObservatory
