地球が回転するに合わせ、Milky Way (天の川)が回る様を撮影したVideoです。
Photographer Aryeh Nirenberg made this 55-second time-lapse video that visualizes Earth’s rotation by fixing the Milky Way as the point of reference and having the landscape spin instead.
Nirenberg shot the photos a couple of years ago over a span of a few hours using a Sony a7S II and a Canon 24-70mm f/2.8 on an equatorial tracking mount. He shot 1,100 separate 10-second exposures (at f/2.8 and ISO 1600) with 12 seconds between each shot.
(via Aryeh Nirenberg via Colossal)