S_1 = (7.5, 0.78)
B = (7.86, -1.88)
k_1 = Circle(S_1, B)
p = Tangent(B, k_1)
A = Point(k_1)
D = (10.95134260737996, 3.5752923833996193)
ω = Circle(A, D)
E = Intersect(k_1, ω, 2)
F = Intersect(k_1, ω, 1)
g = Line(E, F)
f' = Mirror(p, ω)
C = Center(f')
f = OrthogonalLine(C, g)
G = Intersect(f', f, 1)
h = OrthogonalLine(G, f)
k_2 = Mirror(h, ω)
S_2 = Center(k_2)
a = 0 (slider from 0 to 5, step 1)