How do we measure the length of a year?

The video explores the vastness of space, emphasizing how distant stars appear stationary over a year. It explains tracking the sun and Earth's positions relative to stars, defining a sidereal year. The concept of heliacal rising and the ecliptic path is introduced, highlighting the Earth's axial procession. The video compares sidereal and Sothic years, noting the difference in duration and encouraging viewers to reconsider their understanding of time measurement.

What new insight or understanding did you gain from this video?