Front

What causes stars like the sun to appear to move across the sky?

Back

The Earth is rotating on its axis.

Front

What is a constellation?

Back

A constellation is a group of visible stars that form a pattern when viewed from Earth.

Front

Why do some constellations only appear for a few months each year?

Back

As the Earth revolves around the Sun every 365.25 days, the view of some constellations is blocked for a time.

Front

What is the Big Dipper?

Back

The Big Dipper is a well-known constellation that is part of Ursa Major, the Great Bear.

Front

How many official constellations are there?

Back

There are 88 officially recognized constellations.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of the Earth on its axis, while revolution is the movement of the Earth around the Sun.

Front

What is the significance of the North Star?

Back

The North Star, or Polaris, is significant because it is located nearly directly above the North Pole and is used for navigation.

Front

What are the two main types of celestial motion?

Back

The two main types of celestial motion are rotation and revolution.

Front

What is apparent motion?

Back

Apparent motion is the perceived movement of objects in the sky due to the motion of the observer.

Front

How does Earth's rotation affect our view of the night sky?

Back

Earth's rotation causes different stars and constellations to be visible at different times of the night.