HR DIAGRAM
Important Info
The Sun
Sun2
Star Formation
100

What color are cooler stars?

Red

100

What type of star is our sun

Main sequence

100

The hottest, most dense layer

Core

100

What type of star will the sun become next?

Red Giant

100

A dense cloud of gas and dust. The beginning point for both stars

Nebula

200

What type of stars run diagonally down the center of the diagram?

Main sequence stars

200

The heaviest element supergiant stars can burn

Iron

200

The outer most layer of the sun that you can see during an eclipse

Corona

200
2nd layer, outside of the core where the heat travels away from the core

radiative zone

200

a massive implosion that occurs when a supergiant star no longer has any more fuel to burn

Supernova

300

What is measured on the x axis?

Temperature

300

_________ determines the brightness and size of star

Mass

300

This layer gives a red Radiative glow

Chromosphere

300

Temporary cooler, dark patches that appear on the suns photosphere

sun spots

300

Main sequence star's last dying breath as the atmosphere dissipates because there is no longer any fusion taking place

Planetary nebula

400
Stars that move up on the y axis, increase in _______________. 

Luminosity

400

The inward force of gravity is equal to the outward force from nuclear fusion, it is called _______. 

Hydrostatic equilibrium

400

The 3 outer layers make up this part of the sun

Solar atmosphere

400

The layer of the sun that emits light that we can see

Photosphere

400

A star that results when a white dwarf stops giving off energy

black dwarf

500

What are the names of the 2 scientists who designed the HR diagram? Last names only

Hertzsprung and Russell 

500
0 Kelvins or absolute zero is = to what in Celsius?

-273 C

500

The 3 inner layers together make up this part of the sun

Solar Interior

500

The layer of the sun where hot plasma rises to the top of the layer and then is pushed back down to the bottom once it cools. The plasma circulates over and over.

Convection layer

500

After a supernova, a dense, hot spinning star 

Neutron star