Title Text:If the celestial sphere were mapped to the Earth’s surface, astronomy would get a LOT easier; you’d just need a magnifying glass.< Origin:https://xkcd.com/1276/ https://www.explainxkcd.com/wiki/index.php/1276:_Angular_Size https://app-xkcd-cn.appspot.com/ 该漫画是地球表面上各种天体相对于地球中心顶点的角直径（或表观直径）的比较，如开幕图中所示。物体的比例与地球上的实际物体进行比较。给出的每个尺寸都是最接近地球的物体。 伦敦的M25高速公路横跨… Read more