2005/08/25 | 北回归线[Tropic of Cancer]
类别(¤〖天文〗) | 评论(0) | 阅读(32) | 发表于 20:18
The latitude of the summer solstice (in the northern hemisphere),, so named because the constellation corresponding to this position in the sky was Cancer when the constellations were named nearly 2000 years ago. However, precession has resulted in a shift of the position of the Sun so that it is now in the constellation Gemini on the summer solstice.
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