Review - Life of a Star and HR Diagram

Front

What two qualities of stars are displayed in a Hertzsprung-Russell diagram?

Back

Surface Temperature & Absolute Magnitude.

Front

What causes a protostar to develop in a nebula?

Back

Gravity.

Front

How is the life cycle of stars a cycle?

Back

Super novas redistribute dust and gases which eventually form nebulae.

Tags

NGSS.HS-ESS1-3

Front

In which category of star is the Sun found on an H-R Diagram?

Back

Main Sequence.

Front

What percentage of all stars are main sequence stars?

Back

Ninety percent.

Front

What is a protostar?

Back

A protostar is an early stage in the formation of a star, where gas and dust in a nebula begin to collapse under gravity.

Front

What is the Hertzsprung-Russell (H-R) diagram used for?

Back

The H-R diagram is used to classify stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What are red giants?

Back

Red giants are large, luminous stars that have expanded and cooled after exhausting the hydrogen in their cores.

Tags

NGSS.HS-ESS1-3

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, often resulting in the formation of a neutron star or black hole.

Tags

NGSS.HS-ESS1-3

Front

What is absolute magnitude?

Back

Absolute magnitude is a measure of the intrinsic brightness of a star, defined as the brightness of the star at a standard distance of 10 parsecs.