SKY · LIGHT POLLUTION · SOUTH KOREA
Dark-Sky Sites Near Seoul
A Bortle 8–9 metro hemmed by mountains that darken with distance. To actually see the Milky Way and faint stars, you'll want to reach a darker site — and there are real dark-sky destinations within range of Seoul, listed below.
SKY DARKNESS · SEOUL
Sky class (estimate)Bortle 9 · Inner-city sky
What you can seeThe entire sky is brightly lit. Only the Moon, planets and a handful of the brightest stars.
Bortle class is an authored estimate for the city centre, on the standard Bortle dark-sky scale — not a measured figure.
Darker skies within reach
~2.5 HR DRIVE EASTGangwon Province mountainsDarker skies east toward the coast.
Dark-sky designations from the International Dark-Sky Association and well-recognised dark regions. Distances are rough driving guides — always check access, opening hours and the weather before you go.
Plan tonight from Seoul
More sky over Seoul
SEE IT ON THE MAP
The live sky map shows the day/night line over Seoul in real time.