Sun Facts vs Aurora Expert

Calculate times of sunrise, sunset, moonrise (pro), moonset (pro) and more for your location at any given date. * Provides the following information: - Sunrise - Sunset - Solar noon - Twilight times - Blue hour - Golden hour - Equation of time - Declination - Azimuth of sunrise and sunset - Altitude of sun at noon - Sun Path during the day - Solstice and Equinox dates - Widget for displaying sunrise and sunset times on the Today screen - Date and time of next solar eclipse Pro Version (In-app-purchase): - Moon rise - Moon transit - Moon set - Declination - Azimuth of moon rise and moon set - Altitude of moon during transit - Date of next new/full moon - Moon Path during the day - Date and time of next lunar eclipse * Location from : - GPS receiver - map - list of more than 30000 cities - WGS-84 coordinates

Live data from NOAA’s new solar wind sentinel SOLAR-1: Aurora Expert tells you whether you can see the aurora tonight – at your place, with clouds, darkness and the moon. FREE • Tonight’s chance at your place, in five levels from “Very low” to “Very likely” – and every value says when it is from. • Why this verdict? Tap ⓘ: the factors behind the chance and the Kp it takes where you are. • Forecast for up to three nights: Kp, how far the aurora reaches, and the clouds when Apple Weather provides them. • Globe with a time scrubber: NOAA’s aurora oval twelve hours back and ahead, with the day and night side. For both hemispheres. • An alert for your home when the aurora activity there reaches the threshold and it is dark – with a test alert, so you know it arrives. • Red light and field mode for outside: compass and the key values, and your eyes stay adapted to the dark. • Live Activity and widgets for the Lock Screen and StandBy. • Journal with a season summary: for each place, from your own answers, how often you saw the aurora at each forecast level. • At Kp 7 or more, the storm cockpit is open for one night without Aurora Pro. AURORA PRO – ONE PURCHASE, NO SUBSCRIPTION • Place alerts: alerts for every saved place within aurora range, your own threshold of 25, 50 or 75%, wake for strong activity. Save unlimited places. • Trip planner: the best spot for every night of your trip, with route and leave-by reminder. • Tonight from here: clearer places within a 30 to 90 minute drive. • Your best nights: season calendar and widget. • Storm cockpit: Deep Dive with solar wind, Kp history and raw data, substorm tracker, CME outlook and live tiles in field mode. • My nights: photos for your nights, a gallery and export as CSV or JSON. DATA Aurora activity (OVATION), Kp and storm warnings from NOAA SWPC, solar wind from NOAA SOLAR-1 / ACE at the Lagrange point L1, clouds from Apple Weather. No ads, no tracking.