TrackSat vs Apphemeride Precise Astronomy

Track 15,000+ satellites in real time on a live 3D map. See exactly what's flying over your location right now — from the ISS to Starlink, GPS, weather satellites, and more. FEATURES: • Real-time tracking of 15,000+ satellites worldwide • See what's above your location right now • Tonight's visible passes — never miss the ISS again • Time Travel — rewind or fast-forward up to 24 hours • Search any satellite by name or NORAD ID • Filter by category: Starlink, weather, GPS, military, science • Upcoming space launches with countdowns • Deep-space missions: Voyager, James Webb, New Horizons • Solar System view with live spacecraft positions • ISS crew and live tracking PRO FEATURES: • Orbit path visualization • AR Sky View — point your phone at the sky to see satellites • Interactive 3D ISS model • 7-day pass predictions • Extended Time Travel — up to 7 days Satellite data sourced from CelesTrak (NORAD/USSPACECOM). Launches from The Space Devs. Deep-space positions from NASA JPL Horizons. Terms of Use: https://tracksat.app/terms.html Privacy Policy: https://tracksat.app/privacy.html

Your sky. Your perspective. Explore the Sun, Moon, planets and more than 2.5 million stars with Apphemeride. Plan observations, follow celestial events and understand the sky through detailed data, interactive maps and a 3D solar system. BUILD YOUR OWN DASHBOARDS Bring together personal lists, your favorite objects and the details that matter to you. Arrange cards with the new layout system and choose the values, units and formats you want to see. TRAVEL THROUGH THE SOLAR SYSTEM Explore our solar system in 3D. Move between celestial objects and connect their positions in space with what you see in the sky. MAP YOUR NEXT OBSERVATION Explore the sky with constellations and coordinate grids. Use observation and Earth visibility maps to study where an object is above the horizon. Choose which astronomical guides and values appear in your views. GET TO KNOW EACH OBJECT The redesigned object view brings visual exploration and detailed parameters together. Depending on the object, examine rise, transit and set times, altitude, azimuth, coordinates, phase, illumination, brightness, angular size and distance. Search the expanded star catalog by TYC, HIP or HD identifier. FOLLOW EVENTS AND ECLIPSES Study solar and lunar eclipse visibility with maps and simulations. Find upcoming celestial events for a selected location, open them on the sky map, and follow objects in personal watchlists. Set alerts for the astronomical values you want to track. UNDERSTAND THE LOCAL HORIZON Use the Horizon Tracker to compare the paths of the Sun, Moon and planets over a day, month or year. Explore different times and locations to plan observations, travel or astrophotography. AT HOME IN 17 LANGUAGES English, German, Spanish, French, Portuguese, Italian, Arabic, Hungarian, Russian, Polish, Turkish, Hindi, Simplified Chinese, Japanese, Korean, Vietnamese and Indonesian. Core astronomical calculations and bundled catalogs work offline. Online features such as address search, map imagery and current sunspot data require an internet connection. Explore the Sun and Moon for free. Try all features free for three days, then unlock the full version permanently with a one-time in-app purchase. Existing paid customers keep their permanent access.