diff --git a/rainbow.py b/rainbow.py
index d2697e1..10ea3d5 100644
--- a/rainbow.py
+++ b/rainbow.py
@@ -107,7 +107,6 @@ def sun_spectral(wavelength):
 
 def rainbow(n_theta, temp):
 	angles, d_theta = np.linspace(0,np.pi/2,n_theta, retstep=True)
-	mid_angles = angles[:-1] + d_theta
 
 	angle_spectral = np.zeros((n_theta, len(colorspace.data_wavelength)))
 	angle_XYZ = np.zeros((n_theta, 3))