This magnificent armillary sphere stands in the centre of the museum's top gallery. It was designed to show a model of the universe according the ancient astronomer, Claudius Ptolemy, with the ...

This is an astronomical clock made by Song I-yeong, who was an astronomy professor in 1669 during the reign of King Hyeonjong of Joseon. The diameter of the clock is 40 centimeters (15.74 inches ...