Context
On September 22, most of the Earth experienced about 12 hours of daylight and 12 hours of darkness. This is known as the Fall Equinox or the September Equinox.
What is an Equinox?
Terminator |
The terminator does not divide the planet into dark and light. The earth’s atmosphere bends sunlight by 37 miles (approximately 60 km), which equals half a degree. This suggests that one half of the earth is still more lit than the other part, even on the day of an equinox. |
What is the significance of this event?
Correlation between the events of Solstice and Equinox:
Equinox Vs Solstice
Facts about Autumn Equinox:
Effect of Equinox on the functioning of Satellites:
Conclusion:
For a very long the ancient people have used the sky as a clock and calendar. They couldn’t have done this prior understanding about the periodic phenomenon like the Sun’s path across the sky, length of daylight, and location of sunrise and sunset all shifted regularly throughout the year. The event of the equinox is celebrated around the world suggesting its importance in different cultures. The Harvest Moon marks the beginning of the festive season in India. This full is also known as Bhadrapada Purnima in India and it marks the beginning of Pitrapaksha, the fortnight when the ancestors are remembered and worshipped.
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