Description: 盘状星系是一类星系，其特征是拥有一个由恒星、气体和尘埃组成的扁平结构，这些成分都围绕星系中心做共面圆周运动。盘状星系中通常存在螺旋臂及相关的恒星形成活动。在大多数星系分类体系中，盘状星系与椭圆星系、不规则星系和矮星系有所区别。

Related Terms:

• 圆盘
• 椭圆星系
• 银盘
• 不规则星系
• 漩涡星系

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

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