| App Name | Mobile Observatory |
|---|---|
| Publisher | Wolfgang Zima |
| Genre | Education |
| Size | — |
| Update Time | 2026-09-19 |
| Latest Version | 4.7.5 |
| Requires | Android 8.0 |
| Package name | com.zima.mobileobservatorypro |
| Get it On |  |
Mobile Observatory APK + MOD v4.7.5
4.8
Description
With Mobile Observatory MOD APK, you can plan astronomical observations, follow the August 12, 2026 total solar eclipse, and explore the sky from your location. The app combines local event data, rendered sky views, astronomy catalogs, alerts, and telescope control in one paid toolkit.
You can check the eclipse path, local contact times, maximum obscuration, safety notes, and calendar actions for your location. The app also provides a realistic horizon profile, observing plans, and tools for viewing objects in the sky.
Eclipse planning
Mobile Observatory MOD APK shows the path of the August 12, 2026 total solar eclipse, along with local contact times and maximum obscuration. You can view worldwide visibility maps for solar and lunar eclipses, read eclipse safety notes, and add relevant actions to your calendar.
Topographic horizon
The app downloads NASA SRTM elevation data and uses it to render a three-dimensional terrain profile for any location on Earth. Rise and set times are calculated against the local landscape instead of a flat theoretical horizon, which supports planning for astrophotography and other precise observations.
Sky view and space data
A photorealistic sky view displays 45,000 stars, with 2.5 million stars available through a download. Augmented reality adds a live camera overlay, while the interactive 3D Solar System also supports VR and Cardboard.
- You can browse the Messier, NGC, Caldwell, and Hidden Treasures deep sky catalogs.
- The app shows Galilean moon positions and tracks Saturn’s moons.
- A live space weather dashboard includes an aurora forecast.
- Home screen widgets and night mode are available for regular use.
Alerts and calendar actions
Mobile Observatory MOD APK can alert you when geomagnetic activity rises at your location and can send solar flare notifications based on real-time GOES X-ray satellite data. It also provides ISS visibility alerts with brightness and trajectory predictions, plus daily reminders for conjunctions, eclipses, and meteor showers. Events can be pushed directly to your calendar.
Observing plans
The built-in Observing Plan Generator creates target lists using your equipment, location, date, light pollution level, and minimum altitude. You can choose naked-eye viewing, binoculars, or a telescope, then generate recommended objects for the night.
Telescope control
You can connect a computerized telescope through the LX200, NexStar, or INDI protocol. Objects can be browsed in the app and sent to the telescope with GoTo commands, including objects selected through the Observing Plan Generator.
Purchase and compatibility
Mobile Observatory MOD APK is the classic paid version with the complete astronomy toolkit included in a one-time purchase. No subscription is needed. If you already bought it, reinstalling with the same Google account keeps access to Pro.
The app requires Android 8.0 or later. Version 4.7.5 includes bug fixes and stability improvements.
What’s New
v4.7.5Version 4.7.5
🔧 Bug fixes and stability improvements.
The developer's own release notes, taken from Google Play.View on Google PlayRetrieved 2026-09-20
Verified package facts
Versionv4.7.5
Size—
RequiresAndroid 8.0
DeveloperWolfgang Zima
Package namecom.zima.mobileobservatorypro
Google PlayListed on Google Play
Every value above comes from the installable file and is matched with the app's Google Play listing. Kingmodapk does not run antivirus scans or test-install builds on a phone.
Data Safety
Mobile Observatory’s developer publishes this on Google Play — what the official app collects and what it shares. We reproduce it here so you can read it before installing.
- Data is encrypted in transitYour data is transferred over a secure connection
- Data can’t be deletedThe developer doesn’t provide a way for you to request that your data be deleted
- Committed to follow the Play Families PolicyThe developer has committed to follow the Play Families Policy for this app.
Data this app may collect
- App info and performance
- Crash logsAnalytics
- DiagnosticsOptionalAnalytics
No data shared with third parties
View on Google PlayRetrieved 2026-09-20
Specifications
Version
v4.7.5
Latest
Size
—
Total
Category
education
Developer
Wolfgang Zima
Views
201
Updated
2026-09-19
Mod Review
This build suits observers planning the August 12, 2026 total solar eclipse, checking local sky conditions, or using a computerized telescope. It is less suitable if your main need is a simple sky viewer, since its value comes from planning tools, alerts, catalogs, and equipment-based target lists. You should also note that the app collects crash logs and diagnostics.
What you get
This is the original build of Mobile Observatory MOD APK and corresponds to the complete paid version listed on Google Play. It is a one-time purchase priced at 11.99 EUR, with no subscription required. The astronomy toolkit remains intact, including eclipse planning, sky views, alerts, catalogs, the Observing Plan Generator, and telescope control. There is no separate MOD feature to distinguish this build from the paid Google Play version.
Highlights
- Terrain-based rise and set times use NASA SRTM elevation data for more precise local planning.
- Personalized observing plans combine equipment, location, date, light pollution, and minimum altitude.
- ISS, aurora, solar flare, and daily event alerts help you track changing sky conditions.
- LX200, NexStar, and INDI support lets compatible computerized telescopes receive GoTo commands.
Things to know
- The app collects crash logs and diagnostics, according to Google Play's data safety information.
- Version 4.7.5 lists bug fixes and stability improvements, so confirm the build matches that release.
- Android 8.0 or later is required for installation.
Should you install it?
Install it if the eclipse planner, observing lists, alerts, or telescope support match your needs and you want the original paid build. Before downloading, confirm that your device runs Android 8.0 or later and review the crash-log and diagnostics collection.
FAQ
How does the Observing Plan Generator create a target list?
It uses your equipment, location, date, light pollution level, and minimum altitude to create a personalized list. You can select naked-eye viewing, binoculars, or a telescope before generating objects for the night.
What has been changed in this build?
Nothing is presented as a modification. This is the original build of Mobile Observatory, with the complete paid version available through a one-time purchase and no subscription.
Can Mobile Observatory control a computerized telescope?
Yes. It supports LX200, NexStar, and INDI protocols. You can browse objects and send GoTo commands, including targets chosen through the Observing Plan Generator.
Which Android version is required?
Mobile Observatory requires Android 8.0 or later. Android shows its normal installation prompts when you install an APK from outside Google Play.
What does Mobile Observatory collect?
Google Play lists crash logs and diagnostics as collected data. Review those details before installing if this data collection affects your decision.