Umbra.

Total solar eclipse of 12 August 2026

A total solar eclipse crosses the Earth on 12 August 2026. Along a track 130 km wide the Moon blocks the Sun completely, and totality lasts up to 2 min 18 s. The central line runs across Greenland, Russia and Spain. From Valladolid the central phase runs 1 min 28 s, with the Sun 9° above the horizon.

The numbers

Type
Total solar eclipse
Date
12 August 2026
Greatest eclipse
17:45:46 UTC
Eclipse magnitude
1.039
Gamma
0.8976
Central duration
2 min 18 s
Path width
130 km at greatest eclipse
Greatest eclipse at
65.2°N 25.3°W

See it in 3D

The simulator places the Sun, Earth and Moon at their true relative positions for this date and draws the shadow cones at real scale. You can scrub through the eclipse, drop an observer anywhere, and watch the umbra sweep the surface.

Loads about 300 KB on demand — nothing is downloaded until you press it.

Local circumstances

All times are UTC. Contact times are computed for each city from the Besselian elements against the WGS84 ellipsoid, at sea level and without refraction.

Contact times and maximum obscuration, longest central phase first
PlaceC1C2 MaxC3C4 CentralObscuredSun alt.
ValladolidSpain 17:34:22 18:29:43 18:30:26 18:31:11 19:23:00 1 min 28 s 100.0%
ZaragozaSpain 17:34:33 18:28:54 18:29:26 18:30:16 19:21:18 1 min 23 s 100.0%
ReykjavíkIceland 16:47:06 17:48:46 18:47:29 100.0% 25°
L'Hospitalet de LlobregatSpain 17:35:00 18:29:06 19:20:15 99.8%
BarcelonaSpain 17:34:56 18:29:06 19:20:11 99.8%
EixampleSpain 17:34:56 18:29:06 19:20:11 99.8%
Sant MartíSpain 17:34:53 18:29:06 19:20:07 99.8%
BadalonaSpain 17:34:50 18:29:06 19:20:03 99.7%

C1 and C4 are first and last contact, when the Moon's disc touches the Sun's. C2 and C3 bracket the central phase. 354 of the 2,250 cities in the database see at least a 3% partial eclipse.

How these figures were produced

Positions come from astronomy-engine, a VSOP87/ELP implementation. From the geocentric Sun and Moon vectors the site computes Besselian elements — x, y, d, μ, l1, l2, tan f1 and tan f2 — and solves the observer's position on the fundamental plane against the WGS84 ellipsoid. Central durations agree with NASA's Five Millennium Canon to within about half a second. Full method and validation.