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.

See exactly when celestial objects rise above your local hills and whether the 2026 solar eclipse is visible from your location. Mobile Observatory uses NASA elevation data to compute your actual horizon profile and covers eclipses end to end: path maps local contact times maximum obscuration rendered sky view safety notes and calendar actions.

? 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 45000 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