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总结
多家媒体报道，地球将在1月上旬到达“近日点”，即一年中距离太阳最近的时刻，太阳视直径和接收的太阳辐射会略有增加。但报道强调，这并不意味着北半球会变暖或进入夏季：季节主要由地轴倾角决定，北半球此时仍倾向背离太阳，日照角度低、白昼更短，因此依然处于冬季。相关文章同时给出对日地距离变化的科普解释与观测提示。
正文
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