Galaxies, Life Cycle of Stars, H-R Diagrams

Front

What is the average size and temperature of our sun?

Back

Our sun is considered average-sized and has an average temperature.

Front

What event marks the beginning of our known universe?

Back

The Big Bang Theory marks the beginning of our known universe.

Front

What is the distance that light travels in one year called?

Back

The distance that light travels in one year is called a Light year.

Front

What is a collection of stars, dust, and gas bound together by gravity?

Back

A collection of stars, dust, and gas bound together by gravity is called a Galaxy.

Front

Which category contains the most stars?

Back

The Main Sequence category contains the most stars.

Front

What is a galaxy?

Back

A galaxy is a massive system that contains stars, stellar remnants, interstellar gas, dust, and dark matter, all bound together by gravity.

Front

What is the H-R Diagram used for?

Back

The H-R Diagram (Hertzsprung-Russell Diagram) is used to classify stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What are the stages of a star's life cycle?

Back

The stages of a star's life cycle include: Nebula, Main Sequence, Red Giant, Supernova, and Neutron Star or Black Hole.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle.

Front

What is the difference between a red giant and a supergiant?

Back

Red giants are stars that have expanded and cooled after exhausting their hydrogen fuel, while supergiants are even larger and more luminous stars that have also exhausted their hydrogen.