HR Diagram and Stars REVIEW

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What powers our Sun and all stars in the universe?

Back

The conversion of hydrogen into helium through nuclear fusion reactions.

Front

What are the characteristics of a 'Dim, Cool' star?

Back

A star that has low brightness and low temperature.

Front

What is a celestial body?

Back

Any natural body outside of Earth’s atmosphere, including moons, planets, stars, nebulae, galaxies, etc.

Front

What are the characteristics of a 'Dim, Hot' star?

Back

A star that has low brightness but high temperature.

Front

What is nuclear fusion?

Back

A process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the HR Diagram?

Back

A graphical tool that astronomers use to classify stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What is a supernova?

Back

A powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is a pulsar?

Back

A highly magnetized rotating neutron star that emits beams of electromagnetic radiation.

Front

What is a neutron star?

Back

A compact star made mostly of neutrons, formed from the remnants of a supernova.