Glossary term: Earth's Rotation

Redirected from Polar Axis

Description: Earth does not emit its own visible light and receives its light from the Sun; the amount of this light at any one place on the surface varies according to Earth's position relative to the Sun. Earth has two motions that are moving at the same time: a rotation around it axis, and a rotation around the Sun. The rotation of Earth around its axis results in the phenomena of night and day, as the location of a particular place relative to the Sun changes in a gradual and regular manner over a 24 hour cycle as Earth turns from west to east.

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The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".