Astronomy -Unit 4 -Stars REVIEW'

Front

What happens to stars as we move to the left on the H-R diagram?

Back

Stars get hotter.

Front

What changes as you move from the bottom to the top of the H-R diagram?

Back

Luminosity or Brightness.

Front

What is the bright event that occurs when the core of a Red Supergiant collapses?

Back

Supernova.

Front

What can the core collapse into after a supernova if it is massive enough?

Back

Black Hole.

Front

What is a massive star that begins to cool and expand called?

Back

Red Supergiant.

Front

What is the H-R diagram used for in astronomy?

Back

It is used to classify stars based on their luminosity, temperature, and evolutionary stage.

Front

What is a neutron star?

Back

A neutron star is the remnant core of a massive star after a supernova, composed mostly of neutrons.

Front

What is the difference between a Red Giant and a Red Supergiant?

Back

A Red Giant is a star that has expanded and cooled, while a Red Supergiant is a more massive star in a similar stage.

Front

What is a white dwarf?

Back

A white dwarf is the remnant of a low to medium mass star that has exhausted its nuclear fuel and shed its outer layers.

Front

What is a black dwarf?

Back

A black dwarf is a theoretical stellar remnant that occurs when a white dwarf has cooled sufficiently that it no longer emits significant heat or light.