Celestial Observation

북쪽 하늘의 일주 운동 Diurnal Motion of North Sky

Diurnal Motion of North Sky (WebGL)

Pin the Earth * This is a web page using WebGL technology and do not work in Internet explorer. Diurnal Motion Fix the camera towards the Polaris at night. When you shoot…
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지평 좌표계 Horizontal Coordinate System

Horizontal Coordinate System

Touch the screen to move the position of the star. How many numbers do we need to indicate the position of the star? After some time, is this star in the same…
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태양의 일주운동 Diurnal Motion of Sun

Diurnal Motion of Sun

Diurnal Motion is the changing view of the sky seen as the Earth rotates on its axis. What is the change in the movement of the sun during one year? What changes…
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