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Autumnal equinox在September equinox - Wikipedia的討論與評價
The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward.
Autumnal equinox在autumnal equinox | Definition, Dates, & Facts | Britannica的討論與評價
In the Northern Hemisphere the autumnal equinox falls about September 22 or 23, as the Sun crosses the celestial equator going south. In the Southern Hemisphere ...
Autumnal equinox在When Is the First Day of Fall 2022? - Time and Date的討論與評價
According to the astronomical definition, fall begins with the autumnal equinox. In the Northern Hemisphere, it's the September equinox; south of the ...
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Autumnal equinox在autumnal equinox - 秋分點（天） - 國家教育研究院雙語詞彙的討論與評價
秋分點（天） · autumnal equinox · 名詞解釋: 以地球為中心的天球（參見celestial sphere），由地球赤道面（參見equatorial plane）及黃道面（參見equatorial plane）投影其 ...
Autumnal equinox在Autumnal Equinox 2021: The First Day of Fall - The Old ...的討論與評價
The autumnal equinox—also called the September or fall equinox—is the astronomical start of the fall season in the Northern Hemisphere and of the spring season ...
Autumnal equinox在What and when is the autumnal equinox? - Royal Museums ...的討論與評價
The autumnal equinox occurs in September each year, and in the northern hemisphere the date marks the end of summer and beginning of autumn.
Autumnal equinox在autumnal equinox | 例句 - Cambridge Dictionary的討論與評價
It is easy to see that the shadow always falls on the winter hemisphere, except when it crosses the equator during the vernal equinox and the autumnal ...
Autumnal equinox在Fall equinox 2021: 8 things to know about the start of autumn的討論與評價
The autumnal equinox is upon us: On Wednesday, September 22, the Northern and Southern hemispheres will experience an equal amount of ...
Autumnal equinox在Autumnal Equinox -- from Eric Weisstein's World of Astronomy的討論與評價
In the southern hemisphere, the autumnal equinox corresponds to the center of the Sun crossing the celestial equator moving northward and occurs on the date ...
Autumnal equinox在Autumnal equinox Definition & Meaning | Dictionary.com的討論與評價
The autumnal equinox (also called the fall equinox) is one of the two equinoxes—the times of the year when the amount of daylight and nighttime hours are ...