- HD 1080
- Runtime: 132m.
- Status: Released
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- Languages: ko
- Country: South Korea
- Director: Hur Jin-ho
- Stars: Choi Min-sik, Han Suk-kyu, Shin Goo, Heo Joon-ho, Kim Tae-woo
- keywords: astronomy, joseon dynasty, ancient astronomy, king sejong
- Production_studio: Hive Media Corp, Lotte Entertainment
- Slogan: Together to achieve.
- providers: Amazon Prime Video, Kocowa, Rakuten Viki, Amazon Prime Video with Ads
A true historical drama about King Sejong, the greatest ruler in Joseon history who sought to enhance national prosperity and military power through astronomy, and Jang Yeong-sil, the most remarkable scientist.