Precession, Nutation, and Barycenter

This movement changes the direction of the Earth's axis and will cause the north star to change over time.

• barycenter

• precession

• nutation

• ellipse

Slow, circular movement at the top of Earth's axis

• precession

• barycenter

• revolution

Tags

NGSS.MS-PS2-4

The Earth's axis changes direction over time (but the angle of tilt does NOT change).

• Nutation

• Precession

• Barycenter

• Revolution

Tags

NGSS.MS-ESS1-2

Causes the stars to change their apparent position in the sky (every 26,000 years)

• Nutation

• Precession

• Barycenter

• Revolution

Wobbling around the processional axis

• Revolution

• Tide

• Nutation

• Universe

The center of mass between two objects. This is what the planets truly orbit.

• barycenter

• precession

• nutation

• ellipse

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Earth's wobble cause by the gravitational pull from the Moon only. This changes the degree of the Earth's tilt and will cause seasonal changes.

• barycenter

• precession

• nutation

• ellipse

Tags

NGSS.MS-ESS1-1

Due the the solar system's changing barycenter, the Sun is NOT stationary.

• true

• false

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A wobble back and forth in the Earth's path of precession.

• Rotation

• Nutation

• Revolution

When the moon revolves around the Earth, the Earth deviates a little because the moon's gravity is tugging on it.

• Nutation

• Precession

• Barycenter

• Revolution

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4