Venus in 8-year cycle
Taken by Jeff Dai on February 4, 2022 @
Yunnan, China
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Date Taken: 2022:02:07 01:13:43
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Details:
Get up earlier in the morning, you will see the dazzling Venus and the central bulge of the Milky Way galaxy rise in the eastern sky before dawn. Actually you would have seen a similar view in the same date 8 years ago. When plotted geocentrically – from an Earth-centered perspective – there is a highly noticeable rhythm in the motion of Venus. After eight years, it returns to the same place in our sky on about the same date. This is known as the eight-year cycle of Venus, and stems from the fact that 13 Venusian orbits (13 x 224.8 days) very nearly equals eight Earth years. The cycle was known to and of great interest to ancient civilizations.
The digitally stitched mosaics were recorded from
Yuanyang rice terraces in Yunnan Province of China on February 4th, 2014 and Lake Puma Yumco at Tibet, China on February 3rd, 2022. Photo taken by Jeff Dai and Alvin Wu.
Photographer's website:
https://twanight.org/dai
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