Sunfall

Sunfall tells you when the good light happens wherever you are, where on the horizon it will come from, and what the moon is doing once the sun has gone. Open it, and you get one clear answer: what the light is doing right now, and what happens next. A twenty-four-hour sky ribbon shows the sun's path flowing straight into the moon's, with golden hour and blue hour visible as bands of warm color. Drag the sky sideways to move through time and see any moment you like. Light does not stop at sunset, so neither does Sunfall. It shows the moon's altitude and bearing, its phase and how much of it is lit, and when it rises and sets. If you shoot the Milky Way, you want a new moon and a dark sky; if you shoot landscapes at night, you want a full moon high overhead. Sunfall tells you which one you are getting. Every time is calculated on your device using the NOAA solar position algorithm. There…