Penumbral Lunar Eclipse on Tue, 17 August 2027 – Path & Viewing Guide

Global Eclipse Conditions

A penumbral lunar eclipse occurs when the Moon passes through Earth’s outer penumbral shadow without entering the darker umbra. This type of eclipse is subtle, often going unnoticed unless a large portion of the Moon is shadowed. The eclipse begins at 20:26 (GMT-9), as the Moon enters the penumbra and gradually dims. It reaches its maximum at 22:16, with about 54% of the lunar disk in shadow. The Moon then slowly exits the penumbra, and the eclipse ends at 00:03. No portion of the Moon enters the darker umbral shadow during this event.

Local Eclipse Phase Times

Phase	Time (GMT-9)	Local Visibility
Penumbral Eclipse Begins	20:26	👁
The maximum eclipse occurs at 22:16. The eclipse is penumbral with 54% coverage.
Penumbral Eclipse Ends	00:03	👁