Habitable Zones Lab.docx

# Question 1 for the default simulator settings

• Lab Report
• 2

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Question 1: For the default simulator settings, complete the following table. Drag the planet to the inner boundary of the CHZ and note this distance from the Sun. Then drag it to the outer boundary and note this value. Lastly, take the difference of these two figures to calculate the “width” of the sun’s primordial CHZ. CHZ Inner Boundary CHZ Outer Boundary Width of CHZ Question 2: Let’s explore the width of the CHZ for other stars. Complete the table below for stars with a variety of masses. Star Mass (M sun ) Star Luminosity (L sun ) CHZ Inner Boundary (AU) CHZ Outer Boundary (AU) Width of CHZ (AU) 0.3 0.6 1.0 2.0 4.0 8.0 Question 3: Using the table above, what general conclusion can be made regarding the location of the CHZ for different types of stars? Question 4: Using the table above, what general conclusion can be made regarding the width of the CHZ for different types of stars? Reset the simulation by clicking “Reset” in the upper right corner. Now, we are going to investigate what will happen in our own solar system as time goes on. In the Timeline and Simulation Controls, set the rate slider to about 1/5 th of the total scale. Click run and note what happens as time increases (a Gy stands for a Gigayear, which is a billion years). Question 5: When does Earth leave the habitable zone? How long after that does the Sun nova?
• Spring '13
• Bruce
• Solar System, Planet, Habitable zone, CHZ, outer boundary

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