HR Diagram -- Exit Ticket

Front

What is the H-R Diagram?

Back

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

Front

What are white dwarfs?

Back

White dwarfs are small, dense stars that are the remnants of stars that have exhausted their nuclear fuel and shed their outer layers.

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How do white dwarfs compare with supergiants in terms of temperature and luminosity?

Back

White dwarfs are warmer and have lower luminosity than supergiants.

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What is the temperature range of white dwarfs?

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White dwarfs can have surface temperatures ranging from about 5,000 K to over 100,000 K.

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What are supergiants?

Back

Supergiants are among the largest and most luminous stars, often found in the upper left region of the H-R diagram.

Front

How do yellow main sequence stars compare to white dwarfs in brightness?

Back

White dwarfs are not brighter than yellow main sequence stars; in fact, they are generally less luminous.

Front

What is the significance of the upper left end of the main sequence on the H-R diagram?

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Stars on the upper left end of the main sequence are more massive and hotter than those on the lower right end.

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What type of stars are found in the top right region of the H-R diagram?

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The top right region of the H-R diagram is populated by supergiants.

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What is the relationship between a star's mass and its position on the H-R diagram?

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Generally, more massive stars are found on the upper left of the H-R diagram, while less massive stars are on the lower right.

Front

What color are the hottest stars on the H-R diagram?

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The hottest stars are typically blue in color.