今晚的月亮是不是大的異常? - 台中

By Puput
at 2018-10-25T02:05
at 2018-10-25T02:05
Table of Contents
※ 引述《ejeanstone (內湖米達麥亞-帝國軍647T)》之銘言:
: 好久沒見這種一輪明月高高掛而且又大的超誇張
: 角度也還蠻低的
: 大家下班過上班的時候別忘了抬頭起來看一下
大家來長知識~
一般認知裡月亮最圓最大的時候是中秋節,
但為什麼有時候卻會看到大得誇張的月亮呢?
大腦在判斷物體大小的時候跟距離有關,
物體近的時候大,遠的時候小,大家一定都知道XD
但從月出到月末,地球與月亮間的距離都沒有改變啊!
那正是所謂的"月球錯覺"
正如原文所說的,產生錯覺的條件就是月球角度低。
這時候在視覺上,月球附近有物體大小的參考(建築物,山等等)
而當月球越升越高,就沒有這些參考物,取而代是的是被夜空所環繞
所以感覺起來月亮就沒那麼大了。
不過這只是個假說,認為是周圍參考物的"大小"所造成的,
另一個理論則是認為這樣的錯覺是周圍參考物的"距離"所造成。
當月球角度低時,周圍的建築物會幫助大腦判斷月球的距離,
而當角度高時並沒有這樣的參考物,
實際上不管角度大小,月球距離已經不是肉眼可判斷。
有興趣可以參考這兩個說明會更清楚喔:
https://youtu.be/tlqk4J4tFN8
https://zh.wikipedia.org/wiki/%E6%9C%88%E7%90%83%E9%8C%AF%E8%A6%BA
--
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台中
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