Description: 光度是指恒星等发光体每秒释放的能量。最常用于描述电磁辐射，在这种情况下需要指定波长或频率的范围。特定频率或波长下每秒辐射的能量称为 "光度密度"。全电磁波长范围内的光度称为 "热光度"。

其他形式的光度包括中微子发射或物质外流，例如喷流。

在天文学中，光度通常表示为太阳光度（称为太阳光度）的倍数。

Related Terms:

• 亮度
• 电磁辐射
• 频率
• 波长

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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