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Title: EARTH'S ORBIT
Caption: The elliptical orbits of the Moon around the Earth and the Earth around the sun have a substantial effect on the the Earth's tides. Once a month, at perigee, when the Moon is closest to the Earth, tide-generating forces are higher than usual, producing above average ranges in the tides. About two weeks later, at apogee, when the Moon is farthest from the Earth, the lunar tide-raising force is smaller, and the tidal ranges are less than average. When the Earth is closest to the sun (perihelion), around 2 January, tidal ranges are enhanced. At aphelion, when the Earth is furthest from the sun, around 2 July tidal ranges are reduced. Artist not credited.
Credit: Album / NOAA / Science Source
Image size: 4350 × 3090 px | 38.5 MB
Print size: 36.8 × 26.2 cm | 1712.6 × 1216.5 in (300 dpi)