Growing Faster than

the Speed of Ligh?

 

Finding Predicted Maximum Radius & Actual Maximum Radius

 

The ‘scale bar’ on the ‘Scale Picture’ is 3 light years long.  You can use this to find the length between 2 significant points on the other images.

 

The significant points that we used were 2 stars and we measured the radius of V838 Mon to the left hand side.

These are indicated on the images below.  You can use these to make measurements from if you find it easier.

Action Button: Custom:   Scale Picture   Action Button: Custom:   May 2002   Action Button: Custom:   Sept 2002   Action Button: Custom:   Oct 2002   Action Button: Custom:   Dec 2002

The predicted radius of each echo is found by adding the number of months divided by 12 that each image is after May 2002.  Mathematically this looks like:

 

 

 

 To check your answers click here.