Total Solar Eclipse · 2026 Aug 12

Click the map to compute local circumstances. Engine: Besselian elements fitted to JPL DE440.

Ephemeris & ΔT

Lunar radius k

k2 < k1 is deliberate: light leaks through limb valleys at C2/C3, so the effective umbral Moon is smaller. A single mean k misclassifies beaded annulars as totals.

Solar radius

Nearly irrelevant on the centreline (~2 s); dominant near the path edge (~20 s).

Observer

Sky view

Discs are drawn at refracted altitude — where they actually appear. Skyline is ray-traced from Copernicus GLO-30 with Earth curvature + refraction (k=0.13).

Live sky (now, not eclipse day)

True colour is reflected sunlight: it fades as the Sun drops and is blank at night. The cloud mask is infrared, so it still works at the 2–8° Sun of C2/C3 — trust it at eclipse hour.
Arrows point where the smoke goes, not where the wind comes from. A plume rides the wind at ~1–3 km, which is not the 10 m wind a weather station reports — over Burgos those differed by 23°, i.e. ~40 km of plume displacement at 100 km. Model field (Open-Meteo), not stations.
nothingclosuresbadall
DGT loop detectors (~1 min old) colour each diamond by how fast the road is actually moving; is a closure. Closures come from DGT national + Euskadi + Catalonia — DGT excludes those two regions and both are on the path.
Both follow the map: pan or zoom and they reload for the new view. This is today's sky. It forecasts nothing about 12 Aug — it is here because in the last 24 h before totality, satellite nowcasting beats every model, and because fire smoke is an August hazard in Spain that no cloud forecast contains.

Terrain scan (grid)

Scores every ~30 m cell: can it see the Sun at C3 (the Sun is setting, so C3 is the binding constraint). Ray-marched toward the Sun's azimuth only.
Click the map, or press Compute.
Central line
Limits of totality
Path of totality