活了三十多年,第一次親眼看到日偏食。。。
年初一的下午六點左右,從家門正要去慢跑途中,看著天上罕有的一大塊厚厚的雲層,覺得好壯觀, 起初也不引以為意, 可是再仔細看,雲層之間有一粒黑色的東西偏遮著了太陽,啊!才想起是日食啊!第一次看到日食,好興奮!馬上跑回家叫我的哥哥姐姐出來看,也趕緊拿起我的相 機把這幾十年難得一見的奇景拍下來。好幸運!下次要再看好像要等多三四十年了。。哈哈!
以下是一些照片和大家分享,真希望當時有1000mm遠鏡頭。。。哈哈哈!
日偏蝕 Solar Eclipse Date: 26 . 01 . 2009 Time : 06 : 09 : 49
日 偏食:中國史書上稱“日有食之,不盡如勾”,造成日偏食的原因是因為觀測者落在月球的半影區中,觀測者會看見一部分的太陽被月球的陰影遮蓋,但另一部分仍 繼續發光。太阳和月球只有部分重合,依據兩者中心的視距離遠近(太陽被月球遮蓋的最大直徑)來衡量食的大小。通常日偏食是伴隨著其他食相發生,如日全食。 但某些日食只可能是日偏食(不伴隨其他食相),因為月球與地球的距離太遠,只有半影碰到地球表面。
Solar Eclipse:
An eclipse involving the Sun, Earth and Moon can occur only when they are nearly in a straight line, allowing the shadow cast by the Sun to fall upon the eclipsed body. Because the orbital plane of the Moon is tilted with respect to the orbital plane of the Earth (the ecliptic), eclipses can occur only when the Moon is close to the intersection of these two planes (the nodes). The Sun, Earth and nodes are aligned twice a year, and eclipses can occur during a period of about two months around these times. There can be from four to seven eclipses in a calendar year, which repeat according to various eclipse cycles, such as the Saros cycle.




