Range by day, given effective intensity

Effective intensity (candela)          
Atmospheric visibility (nautical miles)     0.0 - 20.0      
Sky luminance (candela/square metre)      
         
 
Threshold of illuminance   0    
Atmospheric transmissivity per mile   0    
 
Luminous range by Day (nautical miles )   0    
Luminous range by Day (km )   0