Bohyunsan Optical Astronomy Observatory at 1,124 m (3,690 ft).

Public observatory · Yeongcheon, North Gyeongsang, South Korea

Bohyunsan Optical Astronomy Observatory

Bohyunsan Optical Astronomy Observatory (BOAO) is a public observatory in Yeongcheon, North Gyeongsang, South Korea. It is open to the public.

Bohyunsan Optical Astronomy Observatory in brief

Open to the public
Yes
Elevation
1,124 m (3,690 ft)
Bortle class
Not yet rated

Official site

Can you visit Bohyunsan Optical Astronomy Observatory? Yes

Open to the public during annual Space Week events; nearby Bohyunsan Observatory science museum.

A public night at an observatory usually starts at dusk with a short talk, then a line at the eyepiece of the main telescope for the Moon, a planet or a bright cluster, with volunteers' smaller telescopes set up outside. Dress for the night air even in summer: domes are not heated, so the telescope stays at outside temperature. Many nights sell out or cancel for clouds, so check the observatory's site on the day.

What Bohyunsan Optical Astronomy Observatory observes

The list does not describe the instruments at Bohyunsan Optical Astronomy Observatory yet; the official site has them.

How dark the sky is at Bohyunsan Optical Astronomy Observatory

Bohyunsan Optical Astronomy Observatory has no Bortle rating in the list yet. The scale below shows what each class looks like.

1 mag 8.0 21.99+ 2 mag 7.5 21.89+ 3 mag 7.0 21.69+ 4 mag 6.5 20.49+ 5 mag 6.0 19.50+ 6 mag 5.5 18.94+ 7 mag 5.0 18.38+ 8 mag 4.5 18.00+ 9 mag 4.0
The Bortle scale. Each panel shows the class number, the faintest star the naked eye reaches at the zenith, and the darkest-edge sky brightness reading of that class in mag/arcsec².

Sky brightness and class come from the World Atlas of Artificial Night Sky Brightness (Falchi et al. 2016, CC BY-NC 4.0), with natural skyglow added, at the coordinates below. Research telescopes are often sited on mountains above the haze, so the real sky can be darker than the map suggests.

Bohyunsan Optical Astronomy Observatory among the observatories of South Korea

Yeongyang Firefly Eco Park Kyung Hee Observatory Taeduk Radio Astronomy Observatory (TRAO) Sobaeksan Optical Astronomy Observatory Bohyunsan Optical Astronomy Observatory Yeongcheon, North Gyeongsang, South Korea Bohyunsan Optical Astronomy Observatory Yeongcheon, North Gyeongsang, South Korea
Dark sky place Research or private observatory Observatory open to the public

Green dots are observatories open to the public, blue dots research or private sites, squares dark sky places; select one for its page. See Observatories in South Korea for the full list.

The coordinates on this page point to BOAO 1.8 m telescope axis, GPS survey (JASS 1995): 36.165°N, 128.977°E.

Map data © OpenStreetMap contributors. Open the larger map · Directions. Mountain observatory roads are often gated after dark; go only on a scheduled public night.

Dark sky places, observatories and clubs near Bohyunsan Optical Astronomy Observatory

Nearest dark sky places

PlaceWhereBortleDistance
Yeongyang Firefly Eco ParkYeongyang, South Korea364 km (40 mi)

Other observatories open to the public within 150 km

Astronomy clubs within 150 km

Bohyunsan Optical Astronomy Observatory record

Every value in the observatories dataset for Bohyunsan Optical Astronomy Observatory
ID326
NameBohyunsan Optical Astronomy Observatory
AcroynmBOAO
CityYeongcheon
StateNorth Gyeongsang
CountrySouth Korea
ContinentAsia
SubcontinentEast Asia
Webhttps://www.kasi.re.kr/
Publicy
Elevation1124
Lat36.16478
Lon128.97658
LatLonSpotBOAO 1.8 m telescope axis, GPS survey (JASS 1995)
StatusActive
StatusNoteKorea Astronomy and Space Science Institute (KASI) 1.8-m telescope site
PublicNoteOpen to the public during annual Space Week events; nearby Bohyunsan Observatory science museum
Sourceshttps://view.asiae.co.kr/en/article/2026051110263657620 https://koreascience.kr/article/JAKO199511920192202.pub?lang=en

From the site's observatories dataset (observatoriesglobal_q426). Distances are computed from the coordinates.