Home > Sun & Moon > Eclipses > December 20 / December 21, 2010 — Total Lunar Eclipse

December 20 / December 21, 2010 — Total Lunar Eclipse

The total lunar eclipse on December 21, 2010, is the last eclipse of the year. This is second of two lunar eclipses in 2010. The last time a total lunar eclipse occurred before that was on February 21, 2008.

Was this Total Lunar Eclipse visible in San Francisco?

What This Lunar Eclipse Looked Like

The animation shows approximately what the eclipse looked like from the night side of the Earth.

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Where the Eclipse Was Seen

Regions seeing, at least, some parts of the eclipse: Europe, Asia, Much of Australia, North/West Africa, North America, South America, Pacific, Atlantic, Arctic.

Expand for cities where at least part of the total eclipse was visible
Expand cities where partial eclipse was visible

Was this eclipse visible in San Francisco?

The animation shows where this total lunar eclipse is visible during the night (dark “wave” slowly moving across the Earth's surface).

Shades of darkness

Night, moon high up in sky.

Moon between 12 and 18 degrees above horizon.

Moon between 6 and 12 degrees above horizon. Make sure you have free line of sight.

Moon between 0 and 6 degrees above horizon. May be hard to see due to brightness and line of sight.

Day, moon and eclipse both not visible.

Note: Twilight will affect the visibility of the eclipse, as well as weather.

Entire eclipse was visible from start to end

Entire partial and total phases were visible. Missed part of penumbral phase.

Entire total phase was visible. Missed part of partial & penumbral phases.

Some of the total phase was visible. Missed part of total, partial & penumbral phases.

Some of the partial phase was visible. Missed total phase and part of partial & penumbral phases.

Some of the penumbral phase was visible. Missed total & partial phases.

Eclipse was not visible at all.

Note: Areas with lighter shadings left (West) of the center will experience the eclipse after moonrise/sunset. Areas with lighter shadings right (East) of the center will experience the eclipse until moonset/sunrise. Actual eclipse visibility depends on weather conditions and line of sight to the Moon.

When the Eclipse Happened Worldwide

Lunar eclipses look approximately the same all over the world and happen at the same time.

The times displayed are accurate to around 2-3 seconds.

EventUTC TimeTime in San Francisco*Visible in San Francisco
Penumbral eclipse beganDec 21 at 05:29:20Dec 20 at 9:29:20 PMYes
Partial eclipse beganDec 21 at 06:32:39Dec 20 at 10:32:39 PMYes
Full eclipse beganDec 21 at 07:40:50Dec 20 at 11:40:50 PMYes
Maximum eclipseDec 21 at 08:16:56Dec 21 at 12:16:56 AMYes
Full eclipse endedDec 21 at 08:53:08Dec 21 at 12:53:08 AMYes
Partial eclipse endedDec 21 at 10:01:20Dec 21 at 2:01:20 AMYes
Penumbral eclipse endedDec 21 at 11:04:31Dec 21 at 3:04:31 AMYes

* The Moon was above the horizon during this eclipse, so with good weather conditions in San Francisco, the entire eclipse was visible.

The magnitude of the eclipse is 1.256.

The penumbral magnitude of the eclipse is 2.281

The total duration of the eclipse is 5 hours, 35 minutes.

The total duration of the partial phases is 2 hours, 16 minutes.

The duration of the full eclipse is 1 hour, 12 minutes.

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