Unit 3: Hertzsprung-Russell Diagram Flashcards

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A diagram that shows the relationship or differences between surface temperature and luminosity of stars.

Luminosity

Temperature in degrees Kelvin

Dim (at the bottom); to bright (at the top) Signup and view all the answers

From hotter (left) to cooler (right) Signup and view all the answers

Supergiants Signup and view all the answers

White dwarfs Signup and view all the answers

Main sequence Signup and view all the answers

Red giants Signup and view all the answers

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Represents the relationship between surface temperature and luminosity of stars.

Y-Axis: Indicates luminosity, with dim stars at the bottom and bright stars at the top.
X-Axis: Represents temperature, increasing from cooler stars on the right to hotter stars on the left.

Supergiants: Located at the very top of the diagram, indicating their high luminosity and size.
Main Sequence Stars: Found in the middle of the diagram, these stars occupy the majority of stellar types, including our Sun.
Red Giants: Positioned in the middle right, they are more luminous than main sequence stars but cooler in temperature.
White Dwarfs: Located at the very bottom of the diagram, these stars are low in luminosity despite being high in temperature.