Description: 銀河系中心是銀河系（太陽系所在的星系）的中心區域，也是銀河系盤繞其旋轉的區域。銀河系中心是銀河隆起的一部分，距離太陽系約 27,000 光年（8千秒差距），而銀河系盤的直徑約為 1000,00 光年（約31千秒差距）。它包含射電源人馬座 A 和緻密的射電源人馬座 A*，後者是我們銀河系中心的超大質量黑洞。這個黑洞的質量約為 450 萬太陽質量，由幾顆年輕的大質量恆星環繞。所有這些都被數以百萬計的老恆星所包圍，構成了所謂的核星團。

Related Terms:

• 銀河系核球
• 銀盤
• 銀暈
• 銀河系
• 人馬座 A*
• 太陽系

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

This is an automated transliteration of the simplified Chinese translation of this term

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".