....................................

1 files changed, 2 insertions, 2 deletions

diff --git a/Sun.h b/Sun.h
index 9e6f144..a242e5f 100644
--- a/Sun.h
+++ b/Sun.h
@@ -11,8 +11,8 @@ class Sun
     
     void setlatitude(float latitude0){latitude=latitude0;};
     
-    float declination(int day) {return 23.4*sin(2*M_PI*(284+day)/365);}
-    float hourangle(int time) {return 15*(time-12);}
+    float declination(int day) {return 23.4*sin(2*M_PI*(284+day+1)/365);}
+    float hourangle(int time) {return 15*(time+1/*-12*/);}
     float elevationangle(int day, int time) {
       return asin(sin(declination(day)*M_PI/180)*
              sin(latitude*M_PI/180)*