a = 0 (slider from 0 to 6, step 1)
v = (11.110909090909093, -9.569090909090903)
N = (21.03818181818182, -4.06)
p = Line(v, N)
S_1 = (11.929090909090911, -3.9509090909090876)
g = OrthogonalLine(S_1, p)
T = Intersect(p, g)
k_1 = Circle(S_1, T)
A = Point(k_1)
f = OrthogonalLine(S_1, p)
T_1 = Intersect(k_1, f, 2)
h = OrthogonalLine(T_1, f)
i = Line(T_1, A)
T_2 = Intersect(p, i)
j = LineBisector(A, T_2)
k = OrthogonalLine(T_2, p)
S_2 = Intersect(j, k)
k_2 = Circle(S_2, T_2)