Read original post by Patrick Kalkman at The Code Project
This article describes the implementation and process of developing Blue Hour. Blue Hour is a Window Phone application for calculation the time the sun rises and sets for the next 30 days.
I love to take pictures using a digital camera. As most photographers know, light is the most important ingredient of a photo. The light during sunrise or sunrise is especially beautiful, making these periods ideal moments to take pictures.
Blue hour refers to the period of twilight each morning and evening where there is neither full daylight nor complete darkness. The time is considered special because of the quality of the light at this time of day, hence the name of the application Blue Hour.