What is the duration of the wobble of the Earth’s axis known as procession?

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Dive into the AST2002 Astronomy Midterm at UCF. Enhance your understanding through engaging flashcards and insightful multiple-choice questions. Prepare effectively and boost your confidence for this academic challenge!

The duration of the wobble of the Earth’s axis, known as precession, is approximately 26,000 years. This precession is caused by gravitational forces exerted by the Sun and the Moon on the Earth's equatorial bulge, leading to a slow, conical motion of the Earth's rotational axis. Over this 26,000-year cycle, the orientation of Earth's axis changes, which affects the position of the celestial poles and can influence long-term climate patterns and the timing of the seasons with respect to Earth's position in its orbit. The significant time frame of 26,000 years highlights the gradual nature of this astronomical phenomenon, distinguishing it from other shorter cycles such as those in Earth's rotation and revolution.