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ASTRONOMICAL ECLIPSE SIMULATOR · AUGUST 12, 2026

Simulate the 2026 Total Solar Eclipse

Interactively explore the celestial alignment of the Sun and Moon, witness the solar corona, Diamond Ring flare, and observe how sky brightness transforms during totality.

Observer Location:

TOTALITY — Moon completely covers the Sun

Location: A Coruña / Galicia · Expected Peak UTC: 18:27 UTC

Obscuration:100.0%
Sun Altitude:10°
Totality Duration:1m 15s
NAKED EYE SAFE (100% TOTALITY ONLY)
C1 (16:45 UTC)Simulation Progress: 50%C4 (18:45 UTC)
Speed:

Understanding the Eclipse Progression (C1 — C4)

CONTACT C1~16:45 UTC

First Contact

The Moon first touches the outer edge of the Sun’s limb. The partial eclipse phase officially begins.

ISO Glasses Required
CONTACT C2~17:45 UTC

Second Contact & Totality

The Moon covers the Sun completely. Baily’s beads flash, followed by the Diamond Ring effect and the solar corona.

Naked Eye Viewing Safe
CONTACT C3~17:48 UTC

Third Contact Exit

Totality ends. The first beam of sunlight breaks out as a brilliant second Diamond Ring, signaling the end of totality.

Put Glasses Back On
CONTACT C4~18:45 UTC

Fourth Contact

The Moon leaves the solar disk completely. Normal daylight returns, completing the celestial phenomenon.

Full Sun Restored

Official ISO 12312-2 Eye Safety Directive

It is unsafe to look directly at the sun during partial phases without certified solar filters (ISO 12312-2). Only during the brief 100% totality phase (C2 to C3) is it safe to view the solar corona with the naked eye.

ISO 12312-2
Certified Standard