Angle of Electric field

Consider 2 point charges Q1 and Q2, separated by a distance d. $Q2 < 0 , Q1 >0$ If an electric field line originates from Q1 and makes an angle $\alpha$ with the line joining the two charges near Q1, then what angle would the same electric field line make near Q2?

$\alpha = \frac {\pi}{3}$ $Q1=6C$ $Q2=2C$

Answer in degrees.