🗣️ اِکُ اِ لاٰکْس
برابری طول مدت زمان شب و روز که در دو روز از سال و در فصول بهار و پاییز اتفاق میفته
- a date when day and night are of exactly equal length
- A day in which the durations of light and darkness are equal, contrasted with an equinox, where they may differ slightly due to the angular diameter of the sun and atmospheric refraction.
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💠 The date of the equilux will vary depending on where on Earth you are, whereas the equinox is a fixed instant in time.
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Equinox Vs Equilux
- The Sun, therefore, appears to rise before its centre at the horizon, giving more daylight than you might expect ( 12 hours 10 minutes on the equinox ) . The equilux is when day and night are equal and occurs a few days before the spring equinox, and a few days after the autumn equinox.
- In spring, this means that the time when day and night are actually equal happens before the equinox. This is known as the equilux which means "equal light".
برابری طول مدت زمان شب و روز که در دو روز از سال و در فصول بهار و پاییز اتفاق میفته
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