Front

What is the name of the constellation that resembles a W shape?

Back

Cassiopeia

Front

What did ancient astronomers use the stars for?

Back

They used the stars to tell time, determine directions, and know when to plant and harvest.

Front

Who built an observatory and made the most accurate astronomical observations for over 20 years?

Back

Tycho Brahe

Front

What is the term for the distance that light can travel in one year?

Back

A light year

Front

Who proposed the heliocentric model of the universe, stating that the Sun is at the center?

Back

Nicolaus Copernicus

Front

What is the primary purpose of an observatory?

Back

To observe celestial events and gather data about astronomical objects.

Front

What is the significance of the heliocentric model in astronomy?

Back

It marked a major shift in understanding the structure of the solar system, moving away from the geocentric model.

Front

What is a light year used to measure?

Back

The distance in space.

Front

Who is known for the laws of planetary motion?

Back

Johannes Kepler

Front

What is the main difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.