Volvelle Denoville Nouvelle Lune pour le XXIème siècle
Author: phm - Observatoire de Lyon - France

texte1

Animation volvelle
Nouvelle Lune
J.B. Denoville
ASSP Rouen

g = 0.1
α = 1.1955505376161157 rad (slider from 0 to 6.283185307179586, step 0.008726646259971648)
dv: 2960.0 * g / 2.0
P2: (dv, -(dv))
P1: (-(dv), -(dv))
ha: 570.0 * g / 2.0
la: 3230.0 * g / 2.0
θ: atan(ha / la)
P4: (sqrt(ha^(2.0) + la^(2.0)); -(θ) - α)
P3: (sqrt(ha^(2.0) + la^(2.0)); 180.0° + θ - α)