Glossary term: 赤道
Description: 赤道是一条环绕地球的假想线，与南北两极的距离相等，且垂直于地球自转轴。赤道是地球表面距离自转轴最远的一条线。在两极，自转轴与地表相交。在地球表面的经纬度坐标系中，赤道的纬度定义为为零度。赤道将地球分为南北半球。位于北半球的地点，其纬度为正；而位于南半球的地点，其纬度为负。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
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".
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