# Apphemeride Precise Astronomy — Offline: Scan & Predict Events > Professional astronomy almanac for precise sky analysis and celestial event tracking. (iPhone/iPad app by Csaba Lengyel.) - Source: https://appshunter.io/ios/app/apphemeride-precise-astronomy/id6776641899 (this page in markdown: same URL + `.md`) - Developer: [Csaba Lengyel](https://appshunter.io/developer/1888397396) - Category: Reference, Navigation - Price: Free - Age rating: 4+ - Requires: iOS 26.0 · 267 MB - Languages: American English - Released: 2026-06-12 - Data updated: 2026-08-15 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/apphemeride-precise-astronomy/id6776641899/reviews.md ## What is Apphemeride Precise Astronomy? Track the sky from any location Apphemeride helps you follow current sky events, spot future events early, and explore past, present, and future phenomena. Run location-based calculations for your current location or any place on Earth. Scan for special configurations of planets, moons, and stars, as well as meteor showers. Find out when an event can be observed or photographed, display it on the sky map, or jump straight to the objects involved. The expanded sky map now offers multiple orientation modes, constellations, more than 9,000 stars, and a visibility filter. Create personal watchlists for your favorite celestial bodies and the astronomical values that matter to you. Set alerts for when a selected value reaches, exceeds, or drops below your threshold. Explore detailed data for the Sun, Moon, planets, Pluto, Chiron, and more than 9,000 stars. Depending on the celestial body, examine rise, meridian transit, and set times, azimuth and altitude, coordinates, twilight, illumination, phase, brightness, angular diameter, distances, and rates of change. View planet positions in the sky or solar system and analyze solar and lunar eclipses with maps and visual simulations. Use the Horizon Tracker to study how the Sun, Moon, or planets move across your local horizon. Compare azimuth and altitude over a day, month, or year and plan observations for a particular viewing direction. Where the sky is darkest, there is often no signal. Apphemeride still works: all astronomical calculations and observation tools are available offline—at remote observing sites, in the desert, or out at sea. Only street and address search requires an internet connection. Customize values, units, formats, and precision to match the way you work. Apphemeride is not a simple star finder, but a comprehensive tool for astronomy enthusiasts, astrophotographers, travelers, and anyone who wants to understand movements in the sky precisely. New users can try all astronomy features free for three days. Afterwards, a one-time in-app purchase unlocks them permanently. Anyone who bought Apphemeride before the transition automatically keeps permanent access. ## Key features - Precise sky analysis - Eclipse and Moon motion tracking - Location-based celestial calculations - Horizon Tracker for celestial body movement - Detailed planetary and solar system data - Solar and lunar eclipse simulations - Configurable data display ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/apphemeride-precise-astronomy/id6776641899/reviews.md ### 5/5 — Amazing AstroCalculation-App *2026-07-06* Finally, an amazing app where I can fully explore my passion for astronomical values and calculations. I can finally find out during which season and moon phase the Moon reaches its highest position in the sky. I’ve been looking for something like this for 10 years. Great work — thank you! **Developer response:** Thank you very much for your feedback! More exciting features will be coming soon, and I hope you’ll enjoy them as well. ## Frequently asked questions about Apphemeride Precise Astronomy ### What celestial events can Apphemeride track? Apphemeride can track solar and lunar eclipses, the motion of the Moon, and the positions of planets. It provides detailed data on rise and set times, transits, and horizon events for these celestial bodies. ### How does Apphemeride use location data? The app uses your location to perform precise, location-based calculations for celestial events, rather than relying on generic tables. This allows for accurate analysis of how the Sun, Moon, and planets move across your local horizon. ### Can Apphemeride simulate eclipses? Yes, Apphemeride offers visual simulations for solar and lunar eclipses, complete with maps. You can also see where an eclipse will be visible and how it will look from a selected place. ### What kind of planetary data does Apphemeride provide? Apphemeride offers detailed data on relative planet positions, orientation, illumination, phase angle, magnitude, angular size, and distance. It also includes specific information on Jupiter's Galilean moons and Saturn's moon system. ### Is Apphemeride suitable for beginners? Apphemeride is described as a premium tool for serious skywatchers and those who want to understand celestial mechanics with accurate calculations. It is not a simple star finder but a focused ephemeris app. ### Does Apphemeride have ads? No, Apphemeride is ad-free. The application does not contain advertisements, allowing for an uninterrupted user experience. ### On which devices can I use Apphemeride? Apphemeride is available for iPhone and iPad. It supports these Apple devices, leveraging their capabilities for precise astronomical analysis. ### How often is Apphemeride updated? The app was last updated on July 4, 2026, with version 1.0.2. This indicates regular maintenance and potential feature additions by the developer. ## Version history (last 4 releases) ### 1.1.0 — 2026-08-09 Version 1.1.0 expands Apphemeride with more ways to personalize and plan your observations. • New celestial objects: Pluto, Chiron, and more than 9,000 stars are now available in the app. • Expanded sky map: Use different orientation modes, constellations, the expanded star catalog, and a visibility filter. • Personal watchlists: Track your favorite celestial bodies and the astronomical values that matter to you. • Custom alerts: Get notified when a selected astronomical value reaches, exceeds, or drops below a threshold you set. • Versatile event scanners: Find out when special configurations of planets, moons, and stars, as well as meteor showers, can be observed or photographed from your location. • Direct access: Show detected events on the sky map or jump straight to the celestial objects involved. • Minor fixes also improve precision and the user experience. ### 1.0.2 — 2026-07-04 We have introduced a 3-day trial so you can explore Apphemeride properly and tell us what you miss, what matters most to you, and what would make the app worth buying. Try Apphemeride and enjoy its wide range of precise astronomy features. ### 1.0.1 — 2026-06-26 App Store metadata has been updated for better discoverability. App functionality is unchanged. ### 1.0 — 2026-06-12 No release notes. ## More apps by Csaba Lengyel - [Proximatory](https://appshunter.io/ios/app/proximatory/id6785085862) All apps by Csaba Lengyel: https://appshunter.io/developer/1888397396 ## Related topics [gastronomy](https://appshunter.io/ios/topics/gastronomy) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*