DeepTime AR: Stargazing & Sky

DeepTime AR is an offline astronomical observatory and spatial AR sky tracker engineered for stargazers, eclipse chasers, astrophotographers, and astronomy enthusiasts. Featuring an embedded catalog of 9,110 visible stars derived from the Yale Bright Star and Hipparcos databases, DeepTime AR brings high-precision celestial mechanics directly to your device completely offline.

Point your device toward the sky to identify stars, study historical eclipses, or simulate how constellations shift across millennia.

KEY FEATURES

TRAVEL 20,000 YEARS ACROSS DEEP TIME
Stars drift across millennia through proper motion. DeepTime AR computes high-precision Hipparcos stellar proper motions from 10,000 BCE to 10,000 CE:
• Watch Orion’s Belt deform across thousands of years.
• Witness Ursa Major (Big Dipper) shift into ancient and future formations.
• Revisit 10,000 BCE Paleolithic skies or explore 10,000 CE when Vega nears the northern celestial pole.
• Navigate smoothly century-by-century with instant return to the current epoch.

REAL-TIME GYROSCOPE AR SKY TRACKER
Hold your device up to inspect celestial coordinates in real time. DeepTime AR combines device sensors to project constellation boundaries and stellar centroids over your camera view:
• Dual Navigation: Point your phone for live AR tracking or drag smoothly across a 360-degree celestial dome.
• Pinch-to-Zoom: Adjust field of view from wide panoramic (100° FOV) down to close cluster inspection (20° FOV).
• Dynamic Orientation: Full support for portrait, landscape, and tablet orientations, optimized for telescope mount setups.

BESSELIAN ECLIPSE ARCHITECT ENGINE
Calculate solar eclipse mechanics anywhere on Earth:
• Analytical Ephemeris: Computes eclipse contacts offline using high-order Besselian polynomials.
• Local Obscuration Gauge: Calculate real-time lunar umbra tracking and solar obscuration for your exact coordinates.
• Interactive Totality Visualizer: Inspect corona, photosphere, and lunar silhouette simulations with a precision time scrubber.
• Historical & Future Paths: Inspect landmark events across history, including past totalities and upcoming global eclipses.

BORTLE LIGHT POLLUTION SIMULATOR
Simulate visibility across various night sky environments:
• City Sky (Bortle 8–9): Highlights bright navigational stars and primary markers.
• Suburban Sky (Bortle 5–6): Outlines major constellation figures.
• Rural Sky (Bortle 3–4): Reveals faint background stars and deeper structures.
• Dark Sky Reserve (Bortle 1–2): Displays the complete catalog of naked-eye stars down to magnitude 6.5.

SCOTOPIC NIGHT VISION MODE
Preserve dark adaptation during nighttime field observation. Switch to a dedicated monochromatic 650nm red display to prevent rhodopsin bleaching while reading star positions in the dark.

OFFLINE & PRIVACY-FOCUSED
• 100% Offline: All 9,110 stars and analytical eclipse algorithms are packaged locally.
• Privacy-Centric: No tracking analytics or personal data collection.
• Compact Footprint: Complete celestial mechanics engine optimized for minimal storage impact.

Step into the night sky and observe the cosmos across past, present, and future epochs.