About SELENEGAUGE

SELENEGAUGE is designed as a contemporary precision instrument for astronomical enthusiasts, educators, students, and night sky observers. Our tool eliminates decorative approximations by computing real-time topocentric orbital mechanics directly within the client browser.

Client-First Architecture

We believe scientific utility should not come at the cost of personal privacy or environmental server overhead. Every calculation from illumination fraction to 24-hour horizon transitions executes entirely on your CPU without transmitting queries or location coordinates to remote servers.

Open Scientific Foundation

Built on modern web standards and powered by the open-source Astronomy Engine by Don Cross.