AstroLens: AR Sky Map & Stars

AstroLens is your personal gateway to the cosmos. Simply point your device at the sky to identify stars, constellations, planets, and satellites in real-time using cutting-edge Augmented Reality (AR).

Whether you are a casual stargazer or a seasoned astrophotographer, AstroLens provides academic-grade precision tools to explore, capture, and understand the night sky.

🚀 KEY FEATURES

• Real-Time AR Sky Map: Hold your phone up to see a live map of the stars and constellations. Premium sensor fusion ensures pinpoint accuracy, while one-touch star calibration lets you correct local magnetic interference instantly.
• High-Resolution DSO Overlays: Reveal the hidden beauty of the deep sky. Seamlessly transition from vector markers to high-resolution photographic overlays of Deep-Sky Objects (DSOs) like the Andromeda Galaxy (M31) and Orion Nebula (M42), rendered at their true angular diameters and zenith alignments as you zoom in.
• Professional Astrophotography Stacking: Capture stunning night-sky images directly on your mobile device. Our professional-grade engine uses 32-bit floating-point accumulation, sub-pixel star centroiding, Welford's 3-sigma outlier rejection (to eliminate satellite passes and airplane trails), and pixel-level dark/flat frame noise calibration.
• High-Precision Orbital Tracking: Track the ISS and bright LEO satellites with real-time SGP4 orbital propagation. Features an advanced Newton-Raphson Kepler solver and deep space perturbation modeling (solar-lunar gravity, drift corrections) for precise satellite tracking, even for high-altitude and geostationary orbits.
• Interactive 3D Solar System Orrery: Decouple from the present moment to scrub through orbital alignments and planetary orbits across a ±5-year timeline. Play, pause, and adjust simulation speeds to watch Mars retrograde and Keplerian physics in action.
• On-Device AI Science Badge: Explore spectroscopic details for iconic stars. View OBAFGKM spectral classification badges, Doppler radial velocity vectors (redshift/blueshift), and animated light curves for variable stars (like Algol and Betelgeuse) on an inverted astronomical scale.
• Atmospheric Refraction Warping: Rest assured that virtual coordinates align perfectly with physical optics. Our engine dynamically warps the Milky Way, coordinate grids, and the ecliptic line near the horizon based on live temperature and pressure readings.

🌌 DESIGNED FOR PRIVACY
AstroLens is built with a privacy-first architecture. Your location is processed strictly on-device for celestial coordinates. To fetch real-time atmospheric conditions (temperature, pressure), coordinates are securely resolved via a third-party weather service (Open-Meteo). Camera data and AI calculations run entirely offline on your device. No personal data is ever stored or sold.

🛠 ADVANCED OBSERVATION TOOLS
• Bortle Scale Simulator: Calibrate star density based on your local light pollution, or toggle Sensor Aperture Mode to bypass culling and simulate deep-exposure camera sensitivity.
• Tactile Gaze Haptics: "Feel" the brightness of the cosmos with graded magnitude-based haptics (distinct ticks for planets, micro-pulses for deep-sky nebulae).
• Night Mode: Protect your eyes in dark-sky locations with a premium, eye-friendly red interface.
• Android 15 Immersive Design: Fully compatible with Android 15 edge-to-edge window configurations, integrating seamless navigation and status bar padding for distraction-free stargazing.

Discover the beauty of the universe with AstroLens. Clear skies!

Recent changes:
• Supercharged 60fps AR Sky View: Bypasses UI recomposition and eliminates sensor GC memory stutter for silky-smooth stargazing.
• Celestial Pole Precision: Fixed coordinate conversion math for celestial poles (Dec ±90°), ensuring rock-solid navigation near Polaris.
• Hardened Stacking Pipeline: Lossless frame buffering prevents dropped shots during long-exposure astrophotography bursts.
• Architecture & Stability: Unified UI State (UDF) and enhanced crash prevention for all camera operations.