Worksheet: Hertzsprung-Russell Diagrams

In this worksheet, we will practice interpreting Hertzsprung-Russell diagrams and identifying types of star based on their position on the diagram.

Q1:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of luminosity and effective temperature. At which of the points 𝑃 , 𝑄 , 𝑅 , 𝑆 , and 𝑇 might an A-type star appear on the diagram?

  • A 𝑅
  • B 𝑆
  • C 𝑇
  • D 𝑃
  • E 𝑄

Q2:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of luminosity and effective temperature.

At which of the points, 𝑃 , 𝑄 , 𝑅 , 𝑆 , or 𝑇 , would a G-type red giant appear on the diagram?

  • A 𝑃
  • B 𝑇
  • C 𝑄
  • D 𝑆
  • E 𝑅

Q3:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of stellar class and absolute magnitude. At which of the points 𝑃 , 𝑄 , 𝑅 , 𝑆 , and 𝑇 would a main sequence star with a surface temperature of 26,000 K appear on the diagram?

  • A 𝑆
  • B 𝑄
  • C 𝑅
  • D 𝑃
  • E 𝑇

Q4:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of luminosity and effective temperature. At which of the points, 𝑃 , 𝑄 , 𝑅 , 𝑆 , or 𝑇 , would the Sun appear on the diagram?

  • A 𝑆
  • B 𝑄
  • C 𝑅
  • D 𝑃
  • E 𝑇

Q5:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of stellar class and absolute magnitude. At which of the points 𝑃 , 𝑄 , 𝑅 , 𝑆 , and 𝑇 would a main sequence star with a surface temperature of 3,300 K appear on the diagram?

  • A 𝑆
  • B 𝑅
  • C 𝑄
  • D 𝑃
  • E 𝑇

Q6:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of stellar class and absolute magnitude. At which of the points 𝑃 , 𝑄 , 𝑅 , 𝑆 , and 𝑇 would a main sequence star with a surface temperature of 5,000 K appear on the diagram?

  • A 𝑇
  • B 𝑅
  • C 𝑄
  • D 𝑆
  • E 𝑃

Q7:

The figure shows a Hertzsprung–Russell diagram, plotted in terms of stellar class and absolute magnitude. At which of the points 𝑃 , 𝑄 , 𝑅 , 𝑆 , and 𝑇 would a star with an absolute magnitude of 4.3 and a surface temperature of 6,300 K appear?