Traditional Culture Encyclopedia - The 24 Solar Terms - According to the revolution direction of the earth, how to judge whether it is autumnal equinox or vernal equinox?
According to the revolution direction of the earth, how to judge whether it is autumnal equinox or vernal equinox?
When the connection between the earth and the sun is perpendicular to the earth axis, it is the vernal equinox or autumnal equinox, and the sun shines directly at the equator. If the direct point of the sun is close to the northern hemisphere, it is the vernal equinox, otherwise it is the autumnal equinox. Seen from north to south, the revolution direction of the earth is counterclockwise.
If you don't know the direction of the earth's revolution, you can only judge whether it is the vernal equinox or the autumnal equinox by other methods, such as the relative positions of the stars such as the earth and the sun. It can also be judged by the direction of the earth's rotation, because the direction of the earth's rotation and revolution is the same.
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