Description: “週日”指的是每日的現象。在地球上，它指的是由於地球自轉，天空中的恆星和其他天體看起來從東向西移動。這種表觀運動的軸與地球的自轉軸重合。週日圈是恆星隨著天球在天空中移動所形成的路徑。在夜空的長時間曝光照片中，這些路徑會呈現出以南北天極為中心的弧形或圓形軌跡，稱為恆星軌跡。對於其他行星上的觀察者，由於該行星的自轉軸和自轉週期不同，恆星和其他天體在天空中描繪的路徑也會有所不同。

Related Terms:

• 天球
• 地球自轉
• Sun Path (Day Arc)
• 地軸
• Night

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

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