SunSpan vs Solpedia

SunSpan — A Year of Daylight on One Screen SunSpan renders an entire year of sunrise, sunset, and twilight as a single chart. Each day is a vertical band shaded from astronomical night through nautical and civil twilight into full daylight, so the seasonal curve, the solstices, the equinoxes, and effects like white nights and polar day are visible at a glance. Tap or drag across the chart to select any day and see its sunrise, sunset, daylight length, and twilight phase times in a detail bubble. Features - Full-year daylight chart for any location, any year from 1900 to 2100 - Eight-stop twilight gradient: night, astronomical, nautical, civil, day - Tap or drag any day to inspect sunrise, sunset, daylight length, and twilight phase times - DST transitions marked on the chart - Location picker via satellite map, or automatic from device GPS - Time zone resolved automatically from the selected coordinates - Localized in English, Spanish, German, and Ukrainian Privacy No accounts, no analytics, no ads. Location is used only on-device to compute solar geometry and never leaves the device.

Know exactly when the Sun and Moon rise, set, and cross your sky — and see it, in 3D and in augmented reality. Solpedia turns the numbers behind a day into something you can look at. Pick any place and any date and get precise times, a sky you can rotate with your finger, and an AR mode that lines the Sun's path up with the real sky through your camera. SUN, DOWN TO THE MINUTE • Sunrise, sunset and solar noon (transit) • All four twilights — civil, nautical and astronomical, dawn and dusk • Golden hour and blue hour windows • Day length, and how it changes toward each solstice THE MOON, TOO • Moonrise and moonset • Moon phase, shown right in the sky views • Moonrise/moonset isophotes traced across the sky SEE YOUR SKY • A 3D sky model you can drag to turn — scrub the time of day and the Sun, the shadow and the readout all follow • A gnomon and its shadow, the horizon, the celestial equator and the meridian • The analemma — the Sun at the same clock time all year • Point-your-phone AR overlay to find the Sun's track against the real sky EXPLORE FURTHER • Planets — positions and yearly charts for Mercury through Pluto • A day-and-night world map you can tap to choose a location • Day-length and equation-of-time charts, theme-aware and clean • Scrub any date on a Sun-declination timeline with solstice and equinox markers AT A GLANCE • Home Screen widgets for sunrise/sunset, moonrise/moonset and moon phase • Optional notifications for rise and set, golden hour and blue hour • Works for anywhere on Earth, past or future dates, offline Whether you shoot golden-hour photos, plan around daylight, chase the blue hour, or just like knowing where the Sun is — Solpedia makes it clear. Includes an optional one-time purchase to remove ads.