Description: 太阳黑子是由于太阳光球层中的强磁场引起的暂时性冷区。太阳黑子是磁通管从太阳深处涌出的区域。强磁场增加了这些区域的磁压力。为了保持与周围环境相同的压力，太阳黑子中的气体和等离子体压力必须下降，这就使其温度低于周围环境。由于太阳黑子比周围的光球温度低，因此可以通过望远镜看到太阳黑子，是太阳表面的暗斑/斑点。太阳黑子的大小从几十公里到十几万公里不等。持续时间从几天到几个月不等。太阳黑子的数量和位置随太阳周期而变化。其他恒星也被认为有由其磁场引起的黑子。

Related Terms:

• 光球
• 太阳周期
• 太阳
• 太阳黑子周期
• 磁场

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

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