LUNAR ECLIPSE
Penumbral lunar eclipse, December 9, 2030
The Moon passes only through Earth’s faint outer shadow. The dimming is hard to notice with the naked eye. Greatest eclipse is at 22:27 UTC (December 10 at 07:27 in Korea). Choose a city or use your location to see when each stage happens where you are.
Eclipse plan by location
Only part of the penumbral phase is visible from New York.
Greatest eclipse Dec 9, 17:27 New York time · Moon about 10° high · east sky
The Moon rises at 16:26 during the eclipse. Find an open eastern horizon.
| Stage | Local time | Altitude · direction | Visibility |
|---|---|---|---|
| Penumbral phase begins | Dec 9 | -12° | Below horizon |
| Greatest eclipse | 10° · east | Visible | |
| Penumbral phase ends | 35° · east | Visible |
How a lunar eclipse unfolds
- Penumbral phase — the Moon enters Earth’s faint outer shadow. It dims only slightly, and most people do not notice.
An eclipse happens at the same instant for everyone who can see the Moon; only the local clock and the Moon’s height differ. It is safe to watch with the naked eye. Weather, hills and buildings are not included in these calculations.
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