Equinoxes On The Earth
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Illumination of Earth by the Sun at the March equinox.
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The Earth in its orbit around the Sun causes the Sun to appear on the celestial sphere moving over the ecliptic (red), which is tilted on the Equator (white).
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Diagram of the Earth's seasons as seen from the north. Far right: December solstice.
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Diagram of the Earth's seasons as seen from the south. Far left: June solstice.
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Famous quotes containing the word earth:
“What a dissimilarity we see in walking, swimming, and flying. And yet it is one and the same motion: it is just that the load- bearing capacity of the earth differs from that of the water, and that that of the water differs from that of the air! Thus we should also learn to fly as thinkers—and not imagine that we are thereby becoming idle dreamers!”
—Friedrich Nietzsche (1844–1900)