The animation shows about 11 hours during which a lunar eclipse was recorded by TASCA (Tollolo All-Sky CAmera) using its B-filter.  The video only takes about 33 seconds to view.  In the beginning of the video the light from the Moon makes the sky so bright you cannot see the Galaxy, but as the bright light from the Moon decreases during the eclipse you can see the Galaxy appear, and then it becomes invisible again near the end of the video when the eclipse is over.  Lots of other stuff shown by TASCA include reflections of the Moon's light moving across the FOV, and two of the telescope buildings at CTIO.