Earth from Moon 2026
Taken by Peter Zimnikoval on December 31, 2025 @
Banska Bystrica, Slovakia
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Details:
Daily positions of Earth on lunar sky at 00:00 GMT (UTC+1)
during the year 2026.The Earth is visible in lunar sky always
above horizon on the near side of the Moon. There the Earth
reaches angular size of 2 degrees. Due to lunar optical
libration, the Earth exhibits the same positional variations
as libration in longitude and latitude. Libration in longitude
alternates with anomalistic period, while librations in latitude
change with the draconic period. The ratio of these periods is
around 1.01:1. As a result, the Earth’s positions vary by two
perpendicular oscilations with slightly different frequencies.
Progress of Earth’s positions in lunar sky is known in physics
as Lissajous curve.
Photographer's website:
https://not
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