deletions | additions       diff --git a/In_order_to_find_the__.tex b/In_order_to_find_the__.tex  index 0120770..93299b4 100644  --- a/In_order_to_find_the__.tex  +++ b/In_order_to_find_the__.tex 
...
In order to find the mass of spiral galaxies, we need the values for the semi-minor (b) and semi-major (a) axis of the galaxy in order to find $\theta$ (inclination). Once we know a and b, we can find the mass. In order to find a and b, we need the coordinates given from the Java applet (the X and Y coordinates in arc seconds). We need to find the maximum separation of two points on the galaxy in on  both the major axis and minor axis - basically find the length of the minor and major axis. For the rest of this report, I will be using data from the spiral galaxy $ESO286-G16$, but I will be using the same method for all of the other spiral galaxies.