Observed arrival · 2026-09-11

Sarosium, an Eclipse Tracker That Shows Its Work

sarosium.app Observed source

Editorial interest 86/100 Selection signal · not a rating of the site

A browser-based 3D globe for exploring every solar and lunar eclipse from 2000 to 2100, including paths, shading, and local timings.

Landing page captured for the 2026-09-11 issue.

Field notes

Sarosium serves 458 ephemeris windows alongside the page and uses cubic Hermite interpolation between sampled Moon and Sun positions and velocities. Its stated computation incorporates JPL DE441 data, WGS84 geodetic observers, Earth rotation, light-time corrections, and a ΔT treatment that combines USNO observations through 2026 with later estimates. The page also exposes unminified JavaScript and a browser-based validation control, making the calculation inspectable rather than presenting only finished eclipse maps.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

One card from the complete issue

Projection by Pedal

381,023 arrived 1,000 judged 1000 catalogued Enter the complete issue