A rare celestial phenomenon: the passage of Venus

(Click to enlarge)Passage of Venus is over — at 08.49 MSK dark silhouette of Venus left the solar disk, the next time this event again only in 2117. This astronomical phenomenon would be observed every two years, if the plane of the orbits of Venus and Earth were identical. But Venusian orbit is inclined to the Earth by 3.39 degrees, so these events occur much less frequently.

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