Properties of Planetary Nebulae Worksheet

Part A: Changing Mass Loss Rate

1, 2) Plots:

 

 

 

 

 

 

 

 

 

Are these plots similar?

4) How do your observations compare with the model?

 

 

 

4) Sketch the mass loss history of the star:

 

 

 

 

5) Describe the history of mass loss from the central star.

 

 

 

Part B: Size and Age of the Ring Nebula

1) Length of long axis:

2) Angular Radius:

3) Actual Radius:

 

 

4) Age of nebula:

 

 

5) Size of the nebula in AU:

 

 

Part C: Mass Return Rate

1) Total Volume:

 

 

Inner Volume:

 

 

2) Emitting Volume:

 

 

3) Mass in kg:

 

 

4) Mass in solar masses:

 

 

What fraction of the star's mass was ejected into the nebula?

 

 

5) Mass Returned to ISM each year:

 

 

 

 

Is this a large amount of material?

 

 

5) Can planetary nebulae account for star formation?