Horizontal coordinate system facts for kids
The horizontal coordinate system, also known as topocentric coordinate system, is a celestial coordinate system that uses the observer's horizon (where they are now) as the fundamental plane.
The horizontal coordinate system is fixed to a location on Earth, not the stars. Therefore, the altitude of an object in the sky changes with time, as the object appears to drift across the sky with Earth's rotation.
See also
In Spanish: Coordenadas horizontales para niños
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Horizontal coordinate system Facts for Kids. Kiddle Encyclopedia.