【涨姿势】今天是秋分,这个天文现象要怎样用英文描述呢?

2015年09月23日 最英国



Equinox ['iːkwɪnɒks; 'ekwɪ-]


There are two equinoxes every year – in September and March – when the sun shines directly on the equator and the length of day and night is nearly equal.


一年有两个昼夜平分点,分别在9月和3月,这时太阳直射赤道,昼夜长度几乎相当。


On the equinox, night and day are nearly exactly the same length – 12 hours – all over the world. This is the reason it's called an "equinox", derived from Latin, meaning "equal night". However, even if this is widely accepted, it isn't entirely true. In reality equinoxes don't have exactly 12 hours of daylight.


在昼夜平分点,全球昼夜几乎等长——各12小时。Equinox这个词源于拉丁文,意思是“均衡的夜晚”。但是,即使这已经被广泛接受,其实它也不是全对的。现实中,即使是昼夜平分点这天,也不会有完全等长的昼夜。


Seasons are opposite on either side of the Equator, so the equinox in September is also known as the Autumnal (fall) equinox in the northern hemisphere. In the Southern Hemisphere, it's known as the Spring (vernal) equinox.


赤道两边的季节是相反的,今天是北半球的秋分,英文是Autumnal (Fall) Equinox。相反,今天是南半球的春分,英文是Spring (Vernal) Equinox。



对于全人类来说,不管你在哪个半球,今天被称为September Equinox。而在3月的那次昼夜平分点,被称为March Equinox。


秋分之后,北半球各地昼渐短夜渐长,南半球各地昼渐长夜渐短。秋分时,全球无极昼极夜现象。秋分之后,北极附近极夜范围渐大,南极附近极昼范围渐大。


所以,从今天起,天会黑得越来越早。英国的童鞋请注意,下午3:30就天黑的日子很快又要来了~~


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