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Excerpted from the book Super Natural Science 6 written by Bambang Sutejo & Chatarina Dewi Lukitasari (2007: 117), Earth’s rotation is the rotation of the earth on its axis, while the revolution of the earth is the rotation of the earth around the sun. The two movements have differences in time (kala) and the impact they have on everyday life.
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Earth’s Rotation and Earth’s Revolution
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Previously, it was explained that Earth’s rotation is the rotation of the earth around its axis in the solar system. The direction of the earth’s rotation is always the same, namely from west to east. The earth rotates on its axis at an inclination of 23.5º, from a perpendicular line to the ecliptic. Excerpted from the book Natural Sciences for SMK and MAK Class X written by Tia Mutiara, S. Pd., Et al (2006: 99), while the time taken for a day of rotation is called the time of rotation, where the rotation of the earth is 23 hours 56 minutes 4 seconds which is then rounded up to 24 hours. In the event of the earth’s rotation, the atmosphere surrounding the earth also rotates.
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As a result of the rotation of the earth, the celestial bodies appear to carry out a daily pseudo-circulation from east to west, the occurrence of day and night events, and the time difference.
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Unlike the rotation of the earth, the revolution of the earth is the rotation of the earth in its orbit around the sun. The plane of the sun’s orbit is known as the ecliptic. One period of revolution of the earth is 365 days 6 hours 9 minutes and 10 seconds, which we call 1 year in the Gregorian calendar.
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