deletions | additions       diff --git a/The_next_question_I_needed__.tex b/The_next_question_I_needed__.tex  index 39ddf4b..e3326f9 100644  --- a/The_next_question_I_needed__.tex  +++ b/The_next_question_I_needed__.tex 
...
In order to find the radial velocity at that point, you need to take the velocity of the last value on the line of nodes and subtract the velocity from the center point in order to find the true radial velocity. That means, I did:  \begin{equation}  True \textrm{True  V_r = Final V_r value on line of nodes - V_r at the center of the galaxy  True V_r galaxy}  \textrm{True V_r}  = 5119 km/s - 4994 km/s \end{equation}