Overview
On the evening of August 27, 2026 (which was already August 28 in some time zones), the Moon moved into Earth's shadow, producing a deep partial lunar eclipse. The event was visible to observers with clear skies.
Details of the Peak
The maximum of the eclipse occurred at 12:13 a.m. Eastern Daylight Time. At that moment, 96.3 percent of the lunar disk lay within the Earth's umbra, the central and darkest part of the shadow where direct sunlight is completely blocked. The remaining fraction of the Moon was in the penumbra, receiving only scattered sunlight.
Observational Impression
Because the eclipse was partial, a bright sliver of the Moon remained outside the umbra and stayed visible. Skilled observers could watch the gradual darkening of the lunar surface as the shadow crept across it, followed by a slow re‑illumination after the maximum phase passed.