Stellarium Mobile

Stop Guessing the Night Sky. Start Navigating It Like an Astronomer.

You look up and see a sea of stars, but can only name the Big Dipper. The universe feels vast, distant, and frustratingly inaccessible. Stellarium Mobile shatters that barrier. Instead of fumbling with star charts or vague astronomy apps, you get a precision planetarium in your pocket. This is not a toy; it is a fully-featured observatory simulation that turns your Android device into a real-time navigation tool for the cosmos. It solves one core problem: how to identify, track, and understand celestial objects with professional-grade accuracy, without needing a PhD.

Core Capabilities: Your Personal Planetarium Engine

The app leverages a high-fidelity 3D rendering engine to calculate the exact positions of over 600,000 stars, planets, and deep-sky objects from any location on Earth. Point your device at the sky, and the app instantly matches its gyroscope data to your view, overlaying labels and trajectory lines. This is not static imagery; it is a dynamic, time-aware simulation. You can accelerate time to watch the moon race across the sky, or rewind to see exactly where Jupiter was last Tuesday. The core experience is built around three distinct modes: the Automatic Observation Mode for instant sky identification, the Manual Exploration Mode for panning and zooming into distant galaxies, and the Time Simulation Mode to predict future celestial events.

• Real-Time Gyroscopic Tracking: Moves the star map in perfect sync with your device's orientation, so what you see on screen is exactly what is above you.
• Deep-Sky Object Database: Access detailed data on 600,000+ stars, 80,000+ deep-sky objects (nebulae, galaxies, clusters), and all major planets in our solar system.
• Advanced Time Control Slider: Rewind, fast-forward, or pause time to simulate the sky at any date, from 4713 BC to 9999 AD.
• High-Fidelity Night Mode Filter: Activates a red-tinted screen overlay to preserve your natural night vision during outdoor observation sessions.
• Augmented Reality Compass Overlay: Displays a dynamic azimuth and altitude grid directly on the live camera feed for precise object location.

Key Advantages That Make It Indispensable

• Professional-Grade Accuracy: The engine uses the same VSOP87 planetary theory and star catalog data that many desktop planetariums rely on, ensuring positional precision down to arcseconds.
• Offline Functionality for Remote Sites: Once the star catalog data is downloaded, the core sky simulation and identification tools work completely offline—critical for dark-sky locations with no cell signal.
• Customizable Observation Profiles: Adjust magnitude limits, enable constellation art overlays, toggle atmosphere rendering, and set custom field-of-view angles for binocular or telescope views.
• Seamless Multi-Device Sync: Save your observation sessions, bookmarked objects, and custom location presets to the cloud, accessible from any device logged into your account.

Download Mobile App Now

Stop looking at a sea of anonymous lights. Start identifying, tracking, and understanding the universe with the tool that astronomers themselves use. This is your exclusive access to a full-scale planetarium simulation—available for a limited time at a special introductory rate. Download Stellarium Mobile now and turn your phone into a professional observation instrument. Today only: first-time users unlock the full deep-sky catalog and time simulation module without any additional cost.

Disclaimer: Stellarium Mobile requires a stable internet connection for initial catalog downloads and cloud sync features. The app's augmented reality compass overlay depends on your device's built-in gyroscope and compass sensors. Some advanced visualization features (e.g., high-resolution nebula textures) may require additional in-app purchase. GPS is recommended for automatic location detection but not required for manual coordinate entry.