About this eclipse
- What happens
- The Moon glides through Earth's faint outer (penumbral) shadow — a subtle shading across the disk rather than a dark bite, best seen as a gentle dimming.
- Where it’s visible
- Pacific, Americas
Lunar eclipse · Saros 148
Penumbral Lunar Eclipse
August 17, 2027 — visible across Pacific, Americas.
Geometry & timing
- Greatest eclipse (TD)
- 07:14:59 · ΔT 76s
- Greatest eclipse (UTC)
- 07:13:43
- Saros series
- 148
- Magnitude
- 0.5456 / -0.5254 (penumbral / umbral)
- Moon overhead at greatest
- 12°S, 108°W
- Phase durations
- 218.6 min
Sources
Timing and geometry from NASA’s eclipse catalogs. Verify local circumstances before you travel.
- NASALunar eclipse catalog (2001–2100)Open →
How the eclipse unfolds
Schematic of the Moon crossing Earth’s penumbra (outer) and umbra (inner) at greatest eclipse. Visible anywhere the Moon is above the horizon: Pacific, Americas.
The Moon is above the horizon — and the eclipse visible — on the marker’s side of the dashed line (its position at greatest eclipse).
Next steps
Keep building the eclipse plan.
Compare paths, nearby dark-sky stays, protected places, and practical field guides for this event.
Dark-sky mapFind protected places
Browse parks, reserves, communities, observatories, and planetariums by darkness and region.
Open routeEclipse travelCompare eclipse pathsUse the 2024-2035 catalog to pair path timing with nearby dark-sky stays.
Open routeStargazing staysSleep near the skyExplore observatory hotels, aurora lodges, astrofarms, and dark-sky resorts.
Open routeTonight guideKnow what to look forStart with the practical guide, then use Stella for the exact window where you are.
Open routeMore eclipses
Related events — same Saros family and nearby dates.
- May 9, 2032 · Saros 148Annular Solar EclipseView →
- Jul 18, 2027 · Saros 110Penumbral Lunar EclipseView →
- Feb 20, 2027 · Saros 143Penumbral Lunar EclipseView →
- Dec 9, 2030 · Saros 145Penumbral Lunar EclipseView →
- Mar 25, 2024 · Saros 113Penumbral Lunar EclipseView →
- May 7, 2031 · Saros 112Penumbral Lunar EclipseView →