Components of the Universe

Front

What is a collection of dust and gases where stars can form?

Back

Nebula

Front

What type of star is considered a Main Sequence Star?

Back

Main Sequence Star is a category of stars that are in the stable phase of hydrogen burning in their cores.

Front

How would you describe Bernard's star in relation to the sun?

Back

Bernard's star is both cooler and dimmer than the sun.

Front

What do all stars begin as?

Back

All stars begin as a nebula.

Front

Which group of stars has higher than average luminosity and lower than average temperature?

Back

Super Giants.

Front

What is a galaxy?

Back

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

Front

Define a black hole.

Back

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

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 HR Diagram?

Back

The HR Diagram (Hertzsprung-Russell Diagram) is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What are white dwarfs?

Back

White dwarfs are the remnants of stars that have exhausted their nuclear fuel and collapsed to a very small size.