Hong Dae-yong Science Museum, Cheonan

A Cheonan museum exploring Joseon scholar Hong Dae-yong's astronomy, with an 800 mm telescope, 15 m planetarium and permanent galleries. Chungnam Tourism lists seasonal times and fees.

Before deciding to visit

The details below come from this page. They have not been checked separately as visit information.

Dates / opening window: Chungnam Tourism lists summer 10:00–22:00 and winter 10:00–21:00. Closed Mondays, Jan 1, the day before and day of Seollal/Chuseok. Basic admission: primary pupils KRW 1,500, secondary pupils KRW 2,000, adults KRW 3,000. Planetarium and night observation cost extra. Visitor review on same page cites shorter hours, so phone 041-564-0113 to confirm current opening.
Location: 113 Jangsanseo-gil, Susin-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do (충청남도 천안시 동남구 수신면 장산서길 113)
Getting there / returning: In Susin-myeon outside central Cheonan. Bus routes and frequency were not verified; check current public transport separately.

Address: 113 Jangsanseo-gil, Susin-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do (충청남도 천안시 동남구 수신면 장산서길 113)
Nearby transit: In Susin-myeon outside central Cheonan. Bus routes and frequency were not verified; check current public transport separately.
Hours: Chungnam Tourism lists summer 10:00–22:00 and winter 10:00–21:00. Closed Mondays, Jan 1, the day before and day of Seollal/Chuseok. Basic admission: primary pupils KRW 1,500, secondary pupils KRW 2,000, adults KRW 3,000. Planetarium and night observation cost extra. Visitor review on same page cites shorter hours, so phone 041-564-0113 to confirm current opening.

Open NAVER Map Official info

충청남도 관광포털Hong Dae-yong Science Museum — Official Visitor GuideCheck current opening hours and planetarium/observation reservations before travel.

Why it matters now

On October 30, 2026 the official Chungnam tourism detail page was checked for address, facilities, prices and seasonal hours. Direct access to the operator's website was blocked, so verify current hours and bookings at 041-564-0113.

Why go

Combine Korean science history with a planetarium and telescope observation; night sessions depend on weather and programme availability.

Practical Korea

Plan the visit

Use the confirmed place facts below, then continue to the broader travel guides for transport, facilities and eating practicalities.

Open travel information →

Getting thereIn Susin-myeon outside central Cheonan. Bus routes and frequency were not verified; check current public transport separately.Find directions on NAVER Map ↗113 Jangsanseo-gil, Susin-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do (충청남도 천안시 동남구 수신면 장산서길 113)

Nearby facilities & servicesOpen guide →Chungnam Tourism lists summer 10:00–22:00 and winter 10:00–21:00. Closed Mondays, Jan 1, the day before and day of Seollal/Chuseok. Basic admission: primary pupils KRW 1,500, secondary pupils KRW 2,000, adults KRW 3,000. Planetarium and night observation cost extra. Visitor review on same page cites shorter hours, so phone 041-564-0113 to confirm current opening.

Food & eatingOpen guide →

Area guideOpen guide →