rsasaki0109 / astro_navigation Sponsor Star 6 Code Issues Pull requests GNSS-denied space navigation: star tracker, lunar TRN, VO, and hazard-aware routing. opencv lunar visual-odometry cpp20 star-tracker space-robotics gnss-denied terrain-relative-navigation Updated Jun 5, 2026 Python
alejandrozarco / celestial-navigator Star 1 Code Issues Pull requests Celestial Navigator - offline software sextant. High-precision position fixing using Meeus & Standish algorithms. No GPS/GNSS or internet required javascript pwa navigation offline-first web-app celestial-navigation sextant survival-tools gnss-denied nautical-almanac meeus-algorithm sailing-tools Updated Apr 27, 2026 HTML