temps 

7 janvier 1610

8 janvier 1610

10 janvier 1610

13 janvier 1610

Terre

α_{I0}:106° + 90°
r_I:422
T_I:1.768
j = 0 (slider from 0 to 7, step 0.01)
α_{G0}:254° + 90°
r_G:1070
T_G:7.152
α_{E0}:145° + 90°
r_E:671
T_E:3.547
α_{C0}:67° + 90°
r_C:1883
T_C:16.744
J = Intersect(xAxis, yAxis)
c_I = Circle(J, r_I)
c_E = Circle(J, r_E)
c_G = Circle(J, r_G)
c_C = Circle(J, r_C)
a: y = (500 * j) - 1500
Io: (r_I; α_{I0} + ((360 * ° / T_I) * j))
I': (x(Io), (500 * j) - 1500)
J': (0, (500 * j) - 1500)
c = Circle(J', 143)
lignes = Sequence(x = (143 * k), k, -15, 15)
b:y = -1500
d:y = -1500 + 500
e:y = -1500 + (500 * 4)
f:y = -1500 + (500 * 6)
g:x = 0
A = Point(g)
B = Point(g)
u = Vector(A, B)
J_0:(0, -1500)
J_1:(0, -1500 + 500)
J_4:(0, -1500 + (500 * 4))
J_6:(0, -1500 + (500 * 6))
r_J:143
c_0 = Circle(J_0, r_J)
c_1 = Circle(J_1, r_J)
c_4 = Circle(J_4, r_J)
c_6 = Circle(J_6, r_J)
Callisto: (r_C; α_{C0} + ((360 * ° / T_C) * j))
C': (x(Callisto), (500 * j) - 1500)
Europe: (r_E; α_{E0} + ((360 * ° / T_E) * j))
E': (x(Europe), (500 * j) - 1500)
Ganymède: (r_G; α_{G0} + ((360 * ° / T_G) * j))
G': (x(Ganymède), (500 * j) - 1500)
C_0: ((r_C * cos(α_{C0})), -1500)
C_1: ((r_C * cos(α_{C0} + (360 * ° / T_C))), -1500 + 500)
C_4: ((r_C * cos(α_{C0} + ((360 * ° / T_C) * 4))), -1500 + (500 * 4))
C_6: ((r_C * cos(α_{C0} + ((360 * ° / T_C) * 6))), -1500 + (500 * 6))
E_0: ((r_E * cos(α_{E0})), -1500)
E_1: ((r_E * cos(α_{E0} + (360 * ° / T_E))), -1500 + 500)
E_4: ((r_E * cos(α_{E0} + ((360 * ° / T_E) * 4))), -1500 + (500 * 4))
E_6: ((r_E * cos(α_{E0} + ((360 * ° / T_E) * 6))), -1500 + (500 * 6))
G_0: ((r_G * cos(α_{G0})), -1500)
G_1: ((r_G * cos(α_{G0} + (360 * ° / T_G))), -1500 + 500)
G_4: ((r_G * cos(α_{G0} + ((360 * ° / T_G) * 4))), -1500 + (500 * 4))
G_6: ((r_G * cos(α_{G0} + ((360 * ° / T_G) * 6))), -1500 + (500 * 6))
I_0: ((r_I * cos(α_{I0})), -1500)
I_1: ((r_I * cos(α_{I0} + (360 * ° / T_I))), -1500 + 500)
I_4: ((r_I * cos(α_{I0} + ((360 * ° / T_I) * 4))), -1500 + (500 * 4))
I_6: ((r_I * cos(α_{I0} + ((360 * ° / T_I) * 6))), -1500 + (500 * 6))
s = Locus(I', j)