Description: 银河系中心是银河系（太阳系所在的星系）的中心区域，也是银河系盘绕其旋转的区域。银河系中心是银河隆起的一部分，距离太阳系约 27,000 光年（8千秒差距），而银河系盘的直径约为 1000,00 光年（约31千秒差距）。它包含射电源人马座 A 和致密的射电源人马座 A*，后者是我们银河系中心的超大质量黑洞。这个黑洞的质量约为 450 万太阳质量，由几颗年轻的大质量恒星环绕。所有这些都被数以百万计的老恒星所包围，构成了所谓的核星团。

Related Terms:

• 银河系核球
• 银盘
• Galactic Halo
• 银河系
• Sagittarius A*
• Solar System

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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