Umbra
The Moon remains outside this dark central shadow during this event.
Penumbral Lunar Eclipse of December 9, 2030
Greatest eclipse 22:28 UTC. Check the local times for your own place below.
Local circumstances
Will you see it, and when?
Choose a place to see local times.
Pick a place above and this panel will show whether the eclipse is visible from there, and the local clock time of every phase.
Whole eclipse above the horizonMoon rises or sets during it
The phases of a lunar eclipse happen at the same instant everywhere on Earth. Those instants come from NASA's catalog (greatest eclipse in Terrestrial Time plus the published durations), converted to UTC with the published 78 s value of Delta-T. Only the Moon's position in your sky is computed here. Source: Five Millennium Catalog. Eclipse Predictions by Fred Espenak, NASA's GSFC. Full method and limits in our methodology.
Penumbral Lunar Eclipse of December 9, 2030
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Interactive orbit lab
See how the penumbra dims the Moon
Move time through this penumbral event, then hover, focus, or tap any labeled object. The light direction and shadow order are physical; sizes and distances are compressed for clarity.
Sun → Earth → MoonPenumbral phaseThe Moon is inside Earth's lighter outer shadow.
Moon
At full moon, the Moon can pass through Earth's shadow. Air around Earth filters and bends red light into the umbra.
Hover, focus, or tap a body or shadow to inspect it.Penumbral lunar eclipseThe closest approach is constrained to this cataloged event type.
Penumbra
The Moon crosses only this lighter outer part of Earth's shadow and dims subtly.
Why not every month?
The Moon's orbit is tilted about 5.1°. An eclipse needs new or full moon near a node, where the two orbital planes cross.
The Moon passes only through Earth's lighter penumbra. It dims subtly, but no dark umbral bite or red totality occurs.
Key facts
| Type | Penumbral lunar eclipse |
|---|---|
| Date | December 9, 2030 |
| Greatest eclipse | 22:28 UTC (the panel above shows your own local times) |
| Visible from | the Americas, Europe, Africa, and Asia |
| Saros series | 145 |
| Gamma | -1.0731(how far the shadow axis passes from Earth's centre, in Earth radii) |
| Umbral magnitude | Negative: the Moon stays outside the dark umbral shadow |
What you will see
The Moon crosses only Earth's outer penumbral shadow, so the full Moon dims subtly rather than showing a dark bite; careful observers notice a soft shading on one side. Visible across the Americas, Europe, Africa, and Asia.
To follow the day and night line on the date of the eclipse, open the live globeand use its time scrubber: the eclipse happens along the Moon's shadow track through the daytime side (for a lunar eclipse, the night side watches the Moon).
Catalog data from NASA GSFC (Five Millennium Catalog of LunarEclipses), Terrestrial Time converted to UTC with the Delta-T value published for this eclipse. Eclipse Predictions by Fred Espenak, NASA's GSFC. Lunar phases happen at the same instant worldwide; only the Moon's position in your sky is computed. How we compute this.