Category Archives: precession

The Great Shift

The Earth is like the top from Inception. As it spins around at very high speeds it wobbles or “precesses” back and forth as the force of gravity from the Moon and Sun tug it from different directions, but it will never fall over. This movement, although much slower and less noticeable than the Earth’s […] Continue reading Continue reading

Posted in astro2110, blog2, Earth, physics, precession, seasons, Solar System, Time | Comments Off on The Great Shift

Precession and its Effects (And Why You Shouldn’t Be Afraid)

Axial precession is the gradual wobble that alters the orientation of Earth’s axis in space. Historically, discovery of this phenomenon was attributed to Greek astronomer Hipparchus. The axis traces out the path of a cone over a 26,000 year cycle. When I first read about this concept, I imagined Earth becoming like Westeros and experiencing […] Continue reading Continue reading

Posted in astro201, blog2, celestialpoles, Class, Observables, precession, solstice, Time | Comments Off on Precession and its Effects (And Why You Shouldn’t Be Afraid)

The Precession of Earth’s Axis

I’m a very visual learner, so when trying to understand the phenomenon of axial precession, I sought out a visual representation of what exactly is going on. This video perfectly explains (for this level class) the causes and implications of axial precession. It leaves us with an advanced understanding of how axial precession affects our […] Continue reading Continue reading

Posted in astro201, blog2, gyroscope, physics, precession | Comments Off on The Precession of Earth’s Axis

Zodiac

The Zodiac was created about 2,000 years ago as a way to track time. Each month, the sun appears to pass through 1 of 12 constellations that are each tied to a sign (In 1930, the International Astronomical Union, actually defined 13 constellations that the Sun passes through, but one does not have a sign). […] Continue reading Continue reading

Posted in astro201, blog2, Constellations, precession, Stars, Zodiac | Comments Off on Zodiac