Total Lunar Eclipse on Sat, 10 December 2011 – Path & Viewing Guide
Global Eclipse Conditions
A total lunar eclipse occurs when the entire Moon passes through Earth's umbral shadow. The eclipse begins with the Moon entering the faint penumbral shadow at 07:35 (GMT-4), though this stage is often difficult to notice. The partial phase starts at 08:47, when a visible dark shadow begins to creep across the lunar surface. Totality begins at 10:07, as the Moon becomes fully immersed in the umbra, often turning a deep red or copper color.The eclipse reaches its peak at 10:34, when the Moon is closest to the center of Earth’s shadow. After that, totality ends at 10:59, and the Moon begins to emerge from the umbra. The partial eclipse concludes at 12:20, followed by a gradual fading of the penumbral shadow until the eclipse ends at 07:35.
Local Eclipse Phase Times
| Phase | Time (GMT-4) | Local Visibility |
|---|---|---|
| Penumbral Eclipse Begins | 07:35 | 👁 |
| The Moon sets at 08:42. The eclipse is in its penumbral phase with 100% coverage. | ||
| Partial Eclipse Begins | 08:47 | - |
| Total Eclipse Begins | 10:07 | - |
| The maximum eclipse occurs at 10:34. The eclipse is total with 100% coverage. | ||
| Total Eclipse Ends | 10:59 | - |
| Partial Eclipse Ends | 12:20 | - |
| Penumbral Eclipse Ends | 13:30 | - |
Global Eclipse Path
Local Eclipse Conditions at (GMT-4)
Earth's Shadow and Moon relative positions.
Local Eclipse Parameters
| Eclipse Phase | |
| Penumbral Magnitude | |
| Umbral Magnitude | |
| Penumbral Coverage | |
| Umbral Coverage | |
| Umbra Size, km | |
| Penumbra Size, km | |
| Distance to Shadow Center, km |
Observation Parameters
| Time | |
| Latitude | 39.9625 |
| Longitude | -83.0061 |
| Moon Elevation | -83.0061 |
| Moon Azimuth | -83.0061 |