Description: 超巨星是体积最大、亮度最高的恒星。它们可能比太阳大几百倍，比太阳亮几千倍。它们占据赫兹普朗-拉塞尔图的顶部区域，绝对目视星等在-3 到-8 之间。超巨星的温度范围从大约3400开尔文（K）到超过20000开尔文（K）不等，它们要么是大质量恒星，要么处于恒星演化的后期阶段。超巨星可以根据它们的光谱来识别，超巨星可以通过它们的光谱来识别，其特征谱线对高亮度和低表面重力敏感：这些光谱线与较小恒星的线宽相比是较窄的。超巨星的典型例子包括猎户座的参宿四和造父变星。

Related Terms:

• 巨星
• Red Supergiant
• 恒星演化
• 光度等级

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".