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Gyeongsangbuk-do » Gyeongju-si » Cheomseongdae Observatory (경주 첨성대)


Cheomseongdae Observatory (경주 첨성대)   
Cheomseongdae Observ...
Cheomseongdae Observ...
  • Cheomseongdae Observ...
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
  • Cheomseongdae Observatory (경주 첨성대)
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839-1, Inwang-dong, Gyeongju-si, Gyeonsangbuk-do
경북 경주시 인왕동 839-1
• 1330 Travel Hotline: +82-2-1330
(Korean, English, Japanese, Chinese)
•For more info: Admin Office
Tourism Information Center
(Gyeongju Station) +82-54-772-3843
(English, Korean, Japanese, Chinese)
VisitKorea does not guarantee the quality of products or services introduced on its site and is not responsible for any direct or indirect losses resulting from use of said products or services.
Cheomseongdae is the oldest existing astronomical observatory in Asia.
Constructed during the reign of Queen Seon-deok (632-647), it was used for observing the stars in order to forecast the weather. This stone structure is a beautiful combination of straight lines and curves, and was designated as National Treasure No.31 on December 20th, 1962.

Cheomseongdae was built in a cylinder shape with stones 30cm in diameter. 362 stones were piled up to make 27 levels. Roughly 4.16m up from the bottom there is a 1㎡ square entrance and a space to hang a ladder under it.
The inside is filled with soil up to the 12th level, and the 19th, 20th, 25th, and 26th levels all have long rocks hanging on two areas, shaped as the Chinese letter '井' (jeong).

It stands 9.17m high and the base stone on each side measures 5.35m.
The Vernal Equinox, Autumnal Equinox, Winter Solstice, Summer Solstice and the 24 solar terms (also known as the astronomical solar year) were determined by the observation of stars. The pavilion stone is believed to have been used as a standard of deciding directions, north, south, east and west. The 362 stones used to build Cheomseongdae represented the 362 days in a lunar year.
Admin Office +82-54-779-8744, Tourism Information Center (Gyeongju Station) +82-54-772-3843
Current Status
National Treasure No.31
Operating Hours
Summer 09:00~22:00 / Winter 09:00~21:00
Parking Facilities
Available for Daereungwon parking lot
* Parking Fees - (S) 2,000 won / (L) 4,000 won
Admission Fees
Facilities for the Handicapped
Reserved parking spaces
1.Start at the Gyeongju Express Bus Terminal.
From the terminal bus stop take Bus 70.
Get off at Daereung-won Tumuli Park. The observatory is 3 minutes away on foot.

Bus: arrives at 7-min intervals

Start at the Gyeongju Express Bus Terminal bus stop.
Take Bus 10 or 11 and get off at Wolseong-dong office (Daereung-won Tumuli Park).
The observatory is 5 minutes away on foot.

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