Description: 大红斑是木星大气层中的一个巨大的反气旋风暴，位于其赤道以南22度处。大红斑约15,000公里长，接近12,000公里宽，目前的尺寸比地球稍大，而在过去它曾达到更大的规模。大红斑内部的风速可超过400公里每小时（250英里每小时）。大红斑呈红色的原因尚不清楚，目前存在多种相互竞争的假说。天文学家乔瓦尼·卡西尼（Giovanni Cassini）在1665年发现了木星上的一个大红斑，并对其进行了长达半个世纪的观测。然而，由于之后的一百年内缺乏观测记录，尚不确定该红斑是否与过去两百年间观测到的大红斑为同一风暴。

Related Terms:

• 木星

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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