Herstmoneaux castle is home to the Greenwich Observatory.
Various shots of the castle, pan to the observatory on a nearby hill.
Various shots showing the observatory domes. C/U of a massive telescope coming out of a hatch in the dome.
Various shots inside the dome. Observer Norman Walker sits in a chair at the base of the telescope and moves it with levers. Various shots of Senior Experimental Officer Philip Laurie operating the "four-inch photo-heliograph" - it is his job to photograph sunspots. Various C/Us of the "weird apparatus" inside the dome, including a "gadget that keeps the telescope in line with the earth's spin".
Some more shots of the exterior of the observatory.
Cuts exist - please see separate record.