Astronomy Review: Kepler's laws, nutation, barycenter

Front

What is the specific angle that the Earth's Axis has in space?

Back

23.5 degrees

Front

What is the term for the wobble of the Earth caused by the gravitational pull from the Moon?

Back

Nutation

Front

How does the Earth move around the Sun?

Back

The Earth Revolves around the sun.

Front

What is the center of mass of an object in space called?

Back

Barycenter

Front

What effect does the tilt of the Earth have on our planet?

Back

It causes the seasons.

Front

What is Kepler's First Law of Planetary Motion?

Back

Planets move in elliptical orbits with the Sun at one focus.

Front

What is Kepler's Second Law of Planetary Motion?

Back

A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.

Front

What is Kepler's Third Law of Planetary Motion?

Back

The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.

Front

What is the definition of barycenter in astronomy?

Back

The barycenter is the center of mass around which two or more bodies orbit.

Front

What is precession in terms of Earth's motion?

Back

Precession is the gradual change or 'wobble' in the orientation of Earth's axis.