The Significance of Uttarayana

HERD Foundation, Nagpur

Uttarayana Uttarayana – Tilting of Earth vis-a-vis Sun’s Reach    

One of the oldest expositions in astronomy is our very own Surya Siddhanta that lays down rules with regard to the motions of celestial bodies. The treatise informs about actual positions of luminaries in the sky, giving their locations along with calculations of solar eclipses and solstices. One may be surprised to learn that it also gives information on the lengths of the Earth’s diameter and circumference!

Surya Siddhanta or the Sun Treatise defines Uttarayana as the period between the Makara Sankranti occurring around January 14 and Karka Sankranti that falls around July 16. Uttara meaning North and Ayana meaning movement indicates the northward movement of the Sun on its celestial course. This is then the period that is celebrated all across our country as an auspicious time.

Today, we are at the threshold of Uttarayana when the Sun’s movement in relation to Earth shifts from its southern run…

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