Glossary term: 自转
Description: 自转是物体绕一条假想轴（称为自转轴）的运动。当物体自转时，其各个部分与自转轴保持完全相同的距离。一般来说，恒星（包括太阳）、行星、卫星或小行星都会围绕一个固定的轴旋转。地球围绕地轴旋转，地轴是穿过地球南北两极的假想轴。地球表面的每个观察者都能看到夜空景象的变化，星星不断从东边地平线升起，沿着西边地平线落下，这就是地球自转的结果。太阳一天中的东升西落也是地球自转的结果。
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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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