Turret going around the stand

[GuitarManGuitar]

I made a 16 22.5 angle turret rotation animation.
The way i made it is so that the place where the turret
rotates is the center of it where the barrel is.
The turret was suspossed to rotate on the end of it.
Do i have to remake the animation or can i use an
equation? If you know the equation, please tell me.

[GuitarManGuitar]

Never mind, i found the equation.
For whoever needs it; here it is:

y=cos((angle/-360)*6.28)*7;
x=sin((angle/-360)*6.28)*7;