Penumbral Lunar Eclipse of August 17, 2027
- Type
- Penumbral lunar eclipse
- Peak (UTC)
- August 17, 2027, 07:13 UTC
- Umbral phase
- None; penumbra only
- Saros series
- 148
The night side of Earth facing the Moon sees it, centered on the Pacific.
A penumbral eclipse this shallow produces no visible change in the Moon at all. We include it for the record, not as something to watch.
Global timeline (UTC)
A lunar eclipse happens at the same instant for everyone; only your clock and your Moon's position differ. Convert from UTC, or use the location panel below to check whether the Moon is up at each stage for you.
| Stage | Time |
|---|---|
| Penumbral eclipse begins | 05:23 UTC |
| Maximum eclipse | 07:13 UTC |
| Penumbral eclipse ends | 09:03 UTC |
What you will see from your location
Enter a location (or use your device's) and we check whether the Moon is above your horizon at each stage of the eclipse, all in your browser.
No location set yet. Your coordinates never leave your device.
What a penumbral lunar eclipse is
In a penumbral eclipse the Moon passes only through the penumbra, the pale outer fringe of Earth's shadow, and never touches the dark umbra. The result is a subtle dimming of one side of the Moon that is difficult to notice by eye. Astronomers track penumbral eclipses because they belong to the same Saros cycles as their dramatic siblings, but as a spectacle they rank near the bottom.
Never miss an eclipse
Every upcoming solar and lunar eclipse in a free feed your calendar app refreshes on its own, computed by the same engine as this page.
Calendar feeds: subscribe (webcal) · download the .ics · all feeds and setup
Frequently asked questions
When is the penumbral lunar eclipse of August 2027?
Greatest eclipse comes on August 17, 2027 at 07:13 UTC. What you see, and when, depends on where you stand; use the location panel on this page for your own local timeline.
Where will the August 2027 lunar eclipse be visible?
The night side of Earth facing the Moon sees it, centered on the Pacific.
Is it safe to watch a lunar eclipse?
Completely. A lunar eclipse is just the full Moon passing through Earth's shadow; it needs no filters or equipment. Binoculars simply make it better.
What is a Saros series?
Eclipses repeat in families called Saros series: 6,585.3 days (about 18 years 11 days) after any eclipse, the Sun, Moon and lunar nodes return to nearly the same geometry and produce a near-copy shifted a third of the way around Earth. This eclipse belongs to Saros series 148. Our Saros cycle profile explains the whole mechanism.
Keep exploring: the Eclipse Control Center for a live console on this eclipse as it happens, the Eclipse Explorer for any date and location, our Saros cycle profile for why eclipses repeat, its longer partners the inex and the exeligmos that together sort every eclipse into families, the eclipse year of 346 days that sets the rhythm of eclipse seasons, and how eclipses work from first principles.
Other eclipses on the calendar
Every eclipse below is engine-verified against the same catalog, so the times are directly comparable.
Penumbral Lunar Eclipse of July 18, 2027
Penumbral lunar eclipse, Saros series 110.
Total Solar Eclipse of August 2, 2027
Total solar eclipse, Saros series 136.
Partial Lunar Eclipse of January 12, 2028
Partial lunar eclipse, Saros series 115.
Annular Solar Eclipse of January 26, 2028
Annular solar eclipse, Saros series 141.
Eclipse Control Center
Watch this one happen: your own contact times and countdown, the shadow crossing Earth, and a go or no-go verdict for where you are standing.
Eclipse Explorer
The next eclipse visible from any location you name, with local contact times, plus a walk along a Saros series.
The Saros Cycle
Why an eclipse repeats a near-copy of itself every 18 years 11 days, and why the copy lands a third of the way around the world.