diff --git a/StarryNights/did.js b/StarryNights/did.js
index 21f850c..c6b76d2 100644
--- a/StarryNights/did.js
+++ b/StarryNights/did.js
@@ -6,7 +6,7 @@
 s0.initImage("file:///home/pln/Work/Hydra/StarryNights/img/february-24-2019-saturn-and-moons.jpg")
 // Source celeste: Saturne
 src(s0)
-  .scale(() => 1 + 0.025 * Math.sin(time / 2.413))
+  .scale(() => 1 + 0.025 * Math.sin(time / 13.12))
   .scale(() => 1.15 + 0.25 * Math.sin(time / 24.0257))
   .contrast(1.32).brightness(-0.1)
   .out(o0)
@@ -24,13 +24,12 @@ src(o0)
   .out(o2)
 //Oeuvre au jaune: Masque geometrique
 src(o1)
-  .blend(o2,() => 0.8 + 0.4 * Math.sin(time))
   .blend(src(o1),() => 0.8 + 0.6 * Math.sin(time/(1312)))
+  .blend(o2,() => 0.4 + 0.8 * Math.sin(time / 10))
   // Oeuvre au rouge: Etoiles solaires
   .add(noise(93,0.01)
     .scroll(() => time/195.7)
-    .mask(shape(30).scale(1.93).invert())
+    .mask(shape(30).scale(1.31, 0.78).invert())
     .thresh(0.93))
   .out(o3)
-
 render(o3)
diff --git a/StarryNights/sylvie.js b/StarryNights/sylvie.js
new file mode 100644
index 0000000..9ec3e76
--- /dev/null
+++ b/StarryNights/sylvie.js
@@ -0,0 +1,33 @@
+// On February 18 in 2014
+// Herbig-Haro 24
+// A partially obscured, newborn star near the center of this image is shooting twin jets into the surrounding gas and dust.
+// The shocks from the collision light up patches of nebulosity collectively called Herbig-Haro 24.
+
+s0.initImage("file:///home/pln/Work/Hydra/StarryNights/img/february-18.jpg")
+// Source celeste: Saturne
+src(s0)
+  // .scale(() => 1 + 0.025 * Math.sin(time / 13.12))
+  // .scale(() => 1.15 + 0.25 * Math.sin(time / 18.0264))
+  .contrast(1.2).brightness(-0.05)
+  .out(o0)
+// Transformation: modulation électrique
+src(o0)
+  .modulate(src(o0)
+    .scale(() => 0.9 + 0.1 * Math.sin(time/19.64))
+  )
+  .out(o1)
+// Assistant Executif: Le Cercle
+shape(64).scale(0.8,0.6).scale(() => 1.5 + 0.5 * Math.sin(time / 1802))
+.scale(() => 0.9 + 0.85 * Math.sin(time / 64.1802))
+.out(o2)
+// Forme finale: sphère d'influence
+src(o1)
+  .modulate(src(o2))
+  .add(src(o3).contrast(1.993).mask(o2), 0.2)
+  .add(noise(199,0.02)
+    .thresh(() => 0.93 + 0.1 * Math.sin(time / 64.1802))
+    .scroll(0, () => -time/1964.0218)
+    .mask(src(o2).invert())
+  )
+.out(o3)
+render(o3)