Glossary term: 天文学
Description: 天文学是一门古老的科学，它研究天空中的天体，如恒星、行星、星系、流星和陨石。它还研究大气层，以便将地球与邻近行星进行比较。过去，天文学关注的是追踪太阳、月亮和行星的位置，以用于日历和导航。现在，现代天文学家还研究支配天体形成和行为的物理现象。
在古代，天文学往往与伪科学占星术密切相关，许多人至今仍不知道这两者之间的区别。
天文学是少数几门业余爱好者可以发挥重要作用的科学之一，因为业余天文爱好者为许多重要发现做出了贡献。
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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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