The number of hours of daylight D depends upon the latitude and the day t of the year and is given by the equation :

D(t)=12+Asin(((2pi)/(365))(t-80))

where A depends only on the latitude (and not t). for latitude 30 degress, A is about 2.3

I need the latitude for D(t) = 10.82

Can any one help me with any of these?

thanks a lot!

D(t)=12+Asin(((2pi)/(365))(t-80))

where A depends only on the latitude (and not t). for latitude 30 degress, A is about 2.3

I need the latitude for D(t) = 10.82

Can any one help me with any of these?

thanks a lot!