Daily Astronomy One | Daily Tracks on the Boulder Array of Caranish

The daily trace of Karanish boulder array

Image source and copyright: Giuseppe Petricca

Explanation: If you take a photo containing the sun at the same time every day, how will the position of the sun change? A intuitive answer to this question is such a picture of such a row (also known as the Sun 8 -character trajectory) -the synthetic photo taken at the same time at the same time. In order to shoot this characteristic daily trace, photographers will go to the village of Karanish, the Herbury Islands outside the UK at noon to shoot at noon, and then synthesize the photos obtained in the later period. The landscape is the stone ring of the Bronze Age built in 2700 BC. I don't know if the Karanesham Stone Array has astronomical significance. The reason for the formation of this 8 -character trajectory is that the earth's self -rotation axis and the orbit of the earth's rotation around the sun are ellipse. At the sun (summer solstice and winter solstice), the sun will appear at the top or bottom of the wrapping trace. However, at the points (spring equinox and autumnal equinox), the sun will be at the middle point of the wrath of the sun, not the point. The upcoming Friday 1:04 (UT) is the autumn equinox (translation: corresponding to 9:04 am Beijing time), at this time the earth is waiting for the day and night. Many ethnic groups celebrate the changes in the season in autumn equinox.

(Translation: Beijing Astronomical Museum)

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