Check out my videos describing the Vedic view of to and fro oscillation of the equinoxes within 54 degrees and the polar shifts within 54 degree arc of the sky.
The most vexatious and the least understood idea of ‘precession’ of equinoxes had a re-run of the same kind in an article (reproduced below)## that I recently read. Behind the attractive title of when Makar Sankaranti was first celebrated, the reader is offered three synchronies, (1) coincidence of Uttarayana (winter solstice) with Makar Sankaranti, (2) Makar Sankaranti coinciding with Til harvest and (3) the current date of Makar Sankaranti coinciding with the date of Uttarayana during the period of Nilaknatha Somayaji in 1500s.
It would do well to the retention of ancient wisdom of Vedic rishis, if modern astronomy software based researchers stop spreading their mis-construed ideas as truth to gullible yet eager readers.
1. As the Earth rotates on its 23.5 degree tilted axis from west to east, it would appear that celestial bodies that rise in the eastern horizon set in the western horizon, except for the stars closer to the celestial North (South) Pole that would appear to circle it.
Aryabhata and Bhaskara II had estimated the tropical year at 365 days, 6 hours, 12 minutes, and 30 seconds, the same figure as estimated in the ancient Indian text, Surya Siddhanta. The modern figure for the tropical year is approximately 365 days, 5 hours, 48 minutes and 45 seconds.