Astro 2 topic 2 Earth's Motions

Front

Rotation

Back

The spinning of Earth on its axis

Front

Revolution

Back

The movement of an object around another object

Front

15 degrees

Back

Earth rotates this many degrees per hour, time zones are this many degrees apart

Front

Polaris

Back

North star; directly above the North Pole

Front

Star Trails

Back

Arcs formed by stars indicating their path in the sky

Front

Latitude

Back

Distance north or south of the Equator, measured in degrees

Front

Longitude

Back

Distance east or west of the prime meridian, measured in degrees

Front

Oblate spheroid

Back

Shape of the earth, a slightly flattened sphere

Front

Coriolis effect

Back

Causes moving air and water to turn left in the southern hemisphere and turn right in the northern hemisphere due to Earth's rotation.

Front

Foucault Pendulum

Back

Device that first proved that Earth rotates on its axis