Stargazing Platform in Gyeongju Historic Area

The observatory is the oldest existing observatory in the East. It was built during the Shande period of the 27th Silla Empress (632-646 AD) to observe the clouds and constellations in the sky. The stargazing platform is a stone structure building, and the collocation of straight lines and curves is very harmonious. On February 20th, 1962 1962 was designated as the national treasury number. 3 1. The stargazing platform is cylindrical, with 362 30cm-sized stones stacked into 27 floors. There is a door 4. 16 meters away from the bottom, each side is 1 meter long, and there are ladder marks under the door.

The interior leading to the 12 layer is filled with soil, and there are two long stones in the shape of wells in the 19, 20, 25 and 26 layers, and both ends of the stones extend out of the platform.

The observatory is 9.17m high, and the stones on the base are 5.35m long on each side. At that time, people measured 24 solar terms such as vernal equinox, autumnal equinox, winter solstice and summer solstice through the starry sky, and based on TIC-tac-toe estimation, designated four directions: east, west, north and south.

This observatory is made of 362 stones, symbolizing the number of days in the lunar year.