Sun position

Everyone who is doing photography knows how important is to get that right angle for sun in shooting. This app TeleSoftas developed is meant to do that and more in helping photographers plan their shoots. So I decided to simplify the sun calculator feature, so that any level of photographers could use. First, I got rid of everything that is not vital. To make it more graphic - the dark part of the map represents the area in shadow. Slider is deliberately placed at the bottom, so you won’t block the screen while moving it.

Do you have any suggestions how this could be improved further?