Ratings Score: 4.52

Reviews: 533

Updated: 1769608679

Size:

Installs: 10,000+

Current Version:

Required Android Version:

Interactive Elements:

Developer: Wolfgang Zima

Developer Email:

Developer Address:

Available On: PlayStore

About Mobile Observatory Astronomy

Mobile Observatory: The Only Astronomy App with Real Horizon Data See exactly when celestial objects rise above YOUR hills and mountains. Mobile Observatory computes your actual local horizon using NASA topographic data - a feature no other astronomy app offers. Know precisely when the Moon clears that ridge or when Saturn becomes visible above the treeline. NEVER MISS A CELESTIAL EVENT Get push notifications for: - Aurora alerts when Kp-index spikes at your location - Solar flare alerts from GOES satellite X-ray data - ISS pass reminders with brightness and trajectory predictions - Daily celestial events including conjunctions, eclipses, and meteor showers - Custom event reminders via calendar integration REAL TOPOGRAPHIC HORIZON - AN ASTRONOMY APP FIRST Download NASA SRTM elevation data for your location and see the true profile of mountains, hills, and ridges blocking your view. All rise and set times are computed against YOUR actual horizon - not a flat mathematical one. Works completely offline after the initial download. AR SKY VIEW & TIME-LAPSE Point your camera at the sky to identify stars, planets, and constellations in real-time with augmented reality. Swipe the time slider to start a time-lapse animation and watch celestial motion unfold - planets crossing the sky, the Moon's monthly journey, satellite passes overhead. LIVE SPACE WEATHER DASHBOARD - Real-time aurora oval forecast with hemisphere selector - Planetary Kp-index chart for geomagnetic storm tracking - GOES X-ray flux chart showing solar flare activity over 3 days - NOAA space weather alerts for storms and radio blackouts - Hourly-updated NASA SDO solar images TONIGHT'S BEST Automatically generated list of the most interesting celestial objects and events visible from your exact location tonight - personalized recommendations based on your horizon and light pollution. COMPREHENSIVE CATALOGS - 45,000 stars with optional 2.5 million star catalog download - 2,500+ NGC objects, complete Messier, Caldwell and Hidden Treasures catalogs - 60,000+ minor planets with daily orbital updates - 1,000+ comets with daily updates - All Starlink satellites and ISS with pass predictions SKY VIEW FEATURES - Stunning photorealistic atmospheric scattering simulation - Adaptive coordinate grid overlay - Quick navigation to cardinal directions, zenith, and horizon - Save your preferred default view position - Night mode with red filter for preserving dark adaptation - 3D Solar System view with VR/Cardboard support PLANNING TOOLS - Rise, set, and transit times calculated against your real horizon - Automatically generated visibility reports - User-defined event filter presets for quick access - Favorite locations with drag-and-drop organization - Manual coordinate entry in decimal or DMS format - Twilight times and day length calculations SOLAR AND LUNAR - Current Sun imagery and sunspot data from NASA - Moon phases with apparent planetary views - Lunar librations and detailed orbital data - Solar and lunar eclipse predictions worldwide ADDITIONAL FEATURES - Light pollution simulation showing sky brightness - Meteor shower forecasts with peak activity times - Conjunction dates for planets and Moon - Home screen widgets for quick information - Calculations accurate from 1900 to 2100 Continuously improved since 2011 - your complete astronomical toolkit.