太陽離地球多遠
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[地球和太陽之間的距離是一億五千萬公里，你只要多看天文方面的書籍就會知道。而科學家計算距離的方法，最初是利用『金星凌日』或火星、小行星接近地球時的有利時機，全球主要天文台共同觀測，然後根據天體力學求得『太陽視差』後，就可以推算出太陽和地球之間的距離了。後來發明了雷達之後，我們可以利用雷達來測出某天體的距離，而更方便求出『太陽視差』。
地球到太陽之距離= 149,597,890 km
科學家將此值取近似值150,000,000 km
離太陽最遠時北半球為夏天稱"遠日點"
離太陽最近時北半球為冬天稱"近日點"
太陽和地球的距離稱 1天文單位 (1 A.U.)
以九大行星離太陽距離的遠近排行分別是↓
水星>金星>地球>火星>木星>土星>天王星>海王星>冥王星
地球排九大行星中的第三個
光速每秒約30萬km
太陽的光到地球約500秒
地球到太陽之距離= 149,597,890 km
科學家將此值取近似值150,000,000 km
離太陽最遠時北半球為夏天稱"遠日點"
離太陽最近時北半球為冬天稱"近日點"
太陽和地球的距離稱 1天文單位 (1 A.U.)
以九大行星離太陽距離的遠近排行分別是↓
水星>金星>地球>火星>木星>土星>天王星>海王星>冥王星
地球排九大行星中的第三個
光速每秒約30萬km
太陽的光到地球約500秒
參考資料 知識+
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