Ήλιος

Γη

Αστέρας1

Αστέρας2

A = (0.24357883716643966, -1.6790479809291692)
r_1 = 1.38 (slider from 0 to 2, step 0.01)
c = Circle(A, r_1)
B = Point(c)
r_2 = 10 (slider from 10 to 50, step 1)
d = Circle(A, r_2)
C = Point(d)
D = Point(d)
a = Segment(C, B)
b = Segment(B, D)
α = Angle(D, B, C)