raggi solari

47°

23.5°

66.5°

20-21 giugno:
- solstizio d'estate per l'emisfero Boreale
- solstizio d'inverno per l'emisfero Australe

A = (-7.923, -6.885)
B = (7.967, -6.885)
C = (9.862303722347361, 3.9963852515025193)
D = (15.862303722347358, 3.9963852515025193)
a = Line(C, D)
E = (13.12, 2.03)
F = (0, 0)
G = (3.242, 4.868)
c = Circle(F, G)
H = (11.36, -2.436)
I = (10.964, -4.416)
J, K = Intersect(c, a)
f = Tangent(K, c)
L = Point(a)
M = Point(f)
N = (0, -6)
O = Point(c)
P = Point(c)
g = CircumcircleSector(N, O, P)
Q = Point(xAxis)
R = Point(xAxis)
b = Line(Q, R)
S = Intersect(c, b, 2)
d = Tangent(S, c)
T = Point(d)
β = Angle(Q, S, T)
U = (19.988111474149544, 0.6026023448010769)
V = (15.997413799730937, 0.6026023448010769)
e = Segment(U, V)
W = (16.77508821833559, 1.0119046703824726)
h = Segment(V, W)
γ = Angle(f, a)
Z = (8.486716125312327, 5.330044205266196)
i = Line(Z, a)
A_1 = Intersect(c, i, 2)
B_1 = Point(c)
j = Tangent(B_1, c)
α = Angle(j, i)
C_1 = Point(g)
k = Line(C_1, i)
D_1 = (5.395055430406206, -2.409642468732226)
E_1 = (3.987330479660203, -4.459124382318322)
F_1 = (0, -6)
G_1 = Point(g)
p = CircumcircleArc(D_1, E_1, F_1)
l = Line(D_1, b)
m = Line(E_1, l)
n = Line(F_1, m)
q = Tangent(E_1, p)
H_1 = Point(m)
I_1 = Point(q)
δ = Angle(H_1, E_1, I_1)
J_1 = Point(l)
L_1 = Intersect(p, l, 1)
r = Tangent(L_1, p)
K_1 = Point(r)
ε = Angle(J_1, L_1, K_1)
O_1 = (-0.07051074062723085, -25.377150059060497)
P_1 = (-7.395824627483262, -17.963223504218305)
Q_1 = (-0.011435628636456413, -10.696984729353053)
S_1 = (0.011510902467395785, -12.452150246764894)
T_1 = (4.234649073708707, -14.356224104318782)