Mobile Observatory MOD APK v4.7.5

Mobile Observatory MOD APK is an astronomy app for planning observations, tracking events, and viewing the sky from your location. It includes information for the total solar eclipse on August 12, 2026, including the eclipse path, local contact times, maximum obscuration, a rendered sky view, safety notes, and calendar actions.

Mobile Observatory MOD APK is the classic paid version of the app. A single purchase includes the complete astronomy toolkit without a subscription. If you have already bought it, you can reinstall it with the same Google account and continue using the paid version. Mobile Observatory MOD APK Astronomy is available as a free version with an optional Premium upgrade.

Terrain-aware observation planning

Rise and set times can be calculated against the landscape at your selected location. Mobile Observatory MOD APK downloads NASA SRTM elevation data and renders a photorealistic 3D terrain profile for locations around the world, rather than treating the horizon as a flat line. This gives you a way to account for local terrain when planning an observation or an astrophotography session.

Alerts and calendar events

The app can notify you about astronomical activity and send selected events to your calendar.

• Aurora alerts respond to increased geomagnetic activity at your location.
• Solar flare notifications use real-time GOES X-ray satellite data.
• ISS visibility alerts include predicted brightness and trajectory information.
• Daily reminders cover events such as conjunctions, eclipses, and meteor showers.
• Calendar actions let you add events directly to your calendar.

Observing Plan Generator

The Observing Plan Generator creates target lists based on your equipment, location, date, light-pollution level, and minimum altitude. You can choose naked-eye, binocular, or telescope observing, then generate a list of suitable objects for the night with one tap. The generated plan also works alongside the app's telescope controls.

Telescope connections

Mobile Observatory MOD APK can connect to computerized telescopes through LX200, NexStar, or INDI. You can browse objects in the app and send GoTo commands to a connected telescope.

Sky, catalogs, and space data

The photorealistic sky view includes 45,000 stars, with 2.5 million stars available through a download. Augmented reality mode places a live camera overlay over the sky view, while the interactive 3D Solar System supports VR and Cardboard.

For object lookup and event planning, the app includes the Messier, NGC, Caldwell, and Hidden Treasures deep-sky catalogs. It also provides solar and lunar eclipse predictions with worldwide visibility maps, positions for the Galilean moons, Saturn moon tracking, and a live space-weather dashboard with an aurora forecast. Home-screen widgets and night mode are included.

Complete paid edition

The paid edition includes satellite tracking, deep-sky catalogs, push notifications, telescope control, and the Observing Plan Generator from the start. Mobile Observatory MOD APK has been available to astronomers, astrophotographers, and stargazers since 2011 and continues to receive feature and data updates.

This build fits observers planning the August 12, 2026 eclipse, people choosing targets by location and equipment, and users with compatible computerized telescopes. It also suits anyone who wants eclipse maps, moon positions, and space-weather information in one paid edition. Pass on it if you only need a free starting point, since Mobile Observatory MOD APK Astronomy is the free alternative with an optional Premium upgrade. Readers who prefer to avoid apps collecting crash logs and diagnostics should consider that data-safety detail before installing.

Inside this build

This is the standard paid Mobile Observatory MOD APK edition, not a separately described modification. It is presented as a one-time purchase containing the complete astronomy toolkit, with no subscription required. Satellite tracking, deep-sky catalogs, push notifications, telescope control, and the Observing Plan Generator are included from the start. Version 4.7.5 keeps the same product scope while adding bug fixes and stability improvements.

Strengths

• Terrain-aware rise and set calculations account for local landscape, which helps when selecting an observation location.
• The Observing Plan Generator filters targets by equipment, date, location, light pollution, and minimum altitude.
• LX200, NexStar, and INDI support lets compatible telescope owners send GoTo commands from object listings.
• Eclipse maps, local contact times, and maximum obscuration support planning for the August 2026 total solar eclipse.

Trade-offs

• Google Play data safety lists crash logs and diagnostics among the data collected by the app.
• The minimum requirement is Android 8.0, so devices on earlier Android releases cannot use this version.
• The paid edition costs 11.99 EUR on Google Play, while the separate free version uses an optional Premium upgrade.

Bottom line

Install this paid edition when its terrain planning, event alerts, or telescope protocols match how you observe. Check that your device runs Android 8.0 or later before choosing the build.