horison

Horison refers to the apparent line that separates earth from sky. It is also known as the skyline or the horizon line. The distance to the horizon depends on the observer's height and atmospheric conditions. On a clear day, the horizon appears as a distinct line. However, in hazy or foggy conditions, it can become indistinct or even disappear. The concept of the horizon is important in navigation, astronomy, and art. For example, sailors use the horizon to orient themselves at sea, and artists often depict the horizon in landscapes to create a sense of depth and perspective. In astronomy, the horizon is used as a reference point for observing celestial objects. The curvature of the Earth means that the horizon is not a flat, infinite line but rather a circle that changes depending on the observer's location. The term "horison" is sometimes used interchangeably with "horizon," though "horizon" is the more commonly accepted spelling in English.