Aug 12, 2026 eclipse planner in the classic Pro app.
4.55·4,937 reviews·10,000+ downloads
About Mobile Obs Pro Astronomy
Mobile Obs Pro Astronomy is an education app developed by Wolfgang Zima.
Download Statistics
Mobile Obs Pro Astronomy has been downloaded 48 thousand times. In the last 30 days, the app was downloaded 310 times.
User Ratings
Mobile Obs Pro Astronomy is rated 4.55 out of 5 stars. The rating is based on 4.9 thousand ratings.
App Information
Mobile Obs Pro Astronomy costs $15.99 to download. The APK download size is 276.73 MB. The latest version available is 4.7.4. The last update was on July 22, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play February 2019.
Description
Mobile Observatory helps you prepare for the August 12, 2026 total solar eclipse. The app shows the eclipse path, local contact times, maximum obscuration, rendered sky view, safety notes, and calendar actions for your location.
Mobile Observatory Pro is the classic paid version of Mobile Observatory. One purchase includes the complete astronomy toolkit.
Already bought this app? Reinstall it with the same Google account and keep using Pro. No subscription is needed.
Prefer to start for free? Mobile Observatory Astronomy is the free version with optional Premium upgrade.
★ WHAT MAKES THIS APP UNIQUE ★
REAL TOPOGRAPHIC HORIZON Other apps assume a flat horizon. Mobile Observatory downloads NASA SRTM elevation data and renders a photorealistic 3D terrain profile for any location on Earth. All rise and set times are computed against your actual landscape — not a theoretical flat line. Astrophotographers and serious observers rely on this for precision planning.
★ NEVER MISS AN EVENT ★
• Aurora alerts when geomagnetic activity spikes at your location • Solar flare notifications from real-time GOES X-ray satellite data • ISS visibility alerts with brightness and trajectory predictions • Daily astronomical event reminders — conjunctions, eclipses, meteor showers • Push events directly to your calendar
★ INTELLIGENT OBSERVING PLANNER ★
The built-in Observing Plan Generator creates personalized target lists based on your equipment (naked eye, binoculars, or telescope), location, date, light pollution level, and minimum altitude. One tap generates the best objects for tonight — no experience required.
★ TELESCOPE CONTROL ★
Connect directly to your computerized telescope via LX200, NexStar, or INDI protocol. Browse objects in the app and send GoTo commands — seamlessly integrated with the Observing Plan Generator.
★ COMPREHENSIVE FEATURE SET ★
• Photorealistic sky view with 45,000 stars (2.5 million with download) • Augmented reality mode with live camera overlay • Interactive 3D Solar System and VR/Cardboard support • Complete deep sky catalogs: Messier, NGC, Caldwell, Hidden Treasures • Solar and lunar eclipse predictions with worldwide visibility maps • Galilean moon positions and Saturn moon tracking • Live space weather dashboard with aurora forecast • Home screen widgets and night mode
★ ALL FEATURES INCLUDED ★
This is the complete paid version of Mobile Observatory with every feature unlocked. It is a one-time purchase for full feature access — satellite tracking, deep sky catalogs, push notifications, telescope control, the Observing Plan Generator, and much more are included from the start.
Trusted by astronomers, astrophotographers, and stargazers since 2011. Continuously updated with new features and data.
Learn more at https://zima.co
Recent changes: Version 4.7.4
🆕 Cities and observatories can now be searched together with country, region, and nearby-place details. 🆕 20 more asterisms expand the catalog to 51 star patterns, with improved search, guidance, and charts. 🔧 Coordinates now determine the correct offline timezone for local times and daylight-saving changes. 🔧 Improved location search, Sky View labels, multi-selection, popup actions, comet descriptions, missing sky information, and stability.
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Probably the best astronomy app out there, but it has not received any version updates since 2023, and the developer is not giving any information about what to expect (or not). Still 5 stars, though.
★★★★★Roy Alexander· Apr 6, 2025
Brilliant all round astro app and widgets - from an observatory director and astronomer
★★★★★Antony Gibbons· Apr 26, 2026
My favorite app is back! Version 4.3.6 is now back to the quality and usability of the earlier versions. The developer has obviously worked very hard to make the changes forced on him by Google. If you're an amateur astronomer there's no better app. A wealth of inform information and very customizable star maps/sky views. Thanks for a great app!
★★☆☆☆Geir Laastad· Nov 6, 2025
Latest PRO version update is a BIG DOWNGRADE. Why editable location features and icon reorganization is removed is beyond me. The app was better before, much better.
★☆☆☆☆Comander AGC· Sep 16, 2025
This app appeared, at first, to be informative, easy to use, and educational. That was until I started to look more closely at a certain comet (C/2014 UN271). Initially, the app showed the comets' path would take it to within .02au of earth in Feb2031 which contradicted the astronomers who said, "it would be a billion miles away at around the orbit of Saturn." before heading back out of the solar system. Now, the owners have erased all the data relating to the comet from the app. Curious!
★★☆☆☆Charles Cotton· Dec 14, 2024
Unusable. In order to show the sky "realistically" many of the brightest object will fair / glare / etc. the view out, making it unusable. You can control the glare / flair of the sun and the moon but not the stars. I have checked every single "settings" menu / setting. No go. I want it to look like the screenshots on this listing! Some features are still good.
★☆☆☆☆Ali Fugu· Nov 20, 2024
The updated app is giving live view of sky as and due.
Google Play Rankings for Mobile Obs Pro Astronomy
This app is not ranked
Technologies used by Mobile Obs Pro Astronomy
Mobile Obs Pro Astronomy is requesting 23 permissions and is using 66 libraries.
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