- Source: December 2011 lunar eclipse
A total lunar eclipse occurred at the Moon’s descending node of orbit on Saturday, December 10, 2011, with an umbral magnitude of 1.1076. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 4.8 days after apogee (on December 5, 2011, at 20:10 UTC), the Moon's apparent diameter was smaller.
Visibility
The eclipse was completely visible over east and northern Asia, Australia, and northern North America, seen rising over Europe and east and central Africa, and setting over North America.
Images
Gallery
Asia
Australia and Oceania
Europe and Middle East
North America
Timing
= Times for Australia
=The eclipse occurred on Saturday evening in Australia. Eastern Daylight Saving Time: (+11:00 UTC)
Penumbral Eclipse Begins: 22:33:32 EDST
Partial Eclipse Begins: 23:45:42 EDST
Total Eclipse Begins: 01:06:16 EDST
Greatest Eclipse: 01:31:49 EDST
Total Eclipse Ends: 01:57:24 EDST
Partial Eclipse Ends: 03:17:58 EDST
Penumbral Eclipse Ends: 04:30:00 EDST
= Times for India
=The eclipse was visible from India in the evening, given in India Standard Time (UTC+5:30):
Penumbral eclipse begins (P1): 17:04 IST
Partial eclipse begins (U1): 18:16 IST
Total eclipse begins (U2): 19:36 IST
Mid-eclipse: 20:02 IST
Total eclipse ends (U3): 20:27 IST
Partial eclipse ends (U4): 21:48 IST
Penumbral eclipse ends (P4): 23:00 IST
= Times for North America
=The eclipse was visible on Saturday morning before sunrise over North America. For most location the moon set before full lunar eclipse. Only Alaska and northernmost Canada will be able to witness the entire event.
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
Related eclipses
= Eclipses in 2011
=A partial solar eclipse on January 4.
A partial solar eclipse on June 1.
A total lunar eclipse on June 15.
A partial solar eclipse on July 1.
A partial solar eclipse on November 25.
A total lunar eclipse on December 10.
= Metonic
=Preceded by: Lunar eclipse of February 21, 2008
Followed by: Lunar eclipse of September 28, 2015
= Tzolkinex
=Preceded by: Lunar eclipse of October 28, 2004
Followed by: Lunar eclipse of January 21, 2019
= Half-Saros
=Preceded by: Solar eclipse of December 4, 2002
Followed by: Solar eclipse of December 14, 2020
= Tritos
=Preceded by: Lunar eclipse of January 9, 2001
Followed by: Lunar eclipse of November 8, 2022
= Lunar Saros 135
=Preceded by: Lunar eclipse of November 29, 1993
Followed by: Lunar eclipse of December 20, 2029
= Inex
=Preceded by: Lunar eclipse of December 30, 1982
Followed by: Lunar eclipse of November 18, 2040
= Triad
=Preceded by: Lunar eclipse of February 8, 1925
Followed by: Lunar eclipse of October 10, 2098
= Lunar eclipses of 2009–2013
=This eclipse is the one of four lunar eclipses in a short-lived series. The lunar year series repeats after 12 lunations or 354 days (shifting back about 10 days in sequential years). Because of the date shift, the Earth's shadow will be about 11 degrees west in sequential events.
= Half-Saros cycle
=A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two total solar eclipses of Solar Saros 142.
See also
List of lunar eclipses and List of 21st-century lunar eclipses
December 2010 lunar eclipse
June 2011 lunar eclipse
File:2011-12-10 Lunar Eclipse Sketch.gif Chart
References
External links
2011 Dec 10 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
https://science.nasa.gov/science-news/science-at-nasa/2011/02dec_lunareclipse/
Hermit eclipse: 2011-12-10
NightSkyInfo.com : 10 December 2011 Lunar Eclipse
ShadowAndSubstance.com Animation and time tables for US time zones
Sharypic World Contributions Gallery
SpaceWeather.com photo album
Live Webcasts
Amateur Astronomers Association Delhi
Astronomers Without Borders Archived 5 January 2012 at the Wayback Machine
Live webcast of 10 Dec Lunar Eclipse
Night Skies Networks
Live webcast of 10 Dec Lunar Eclipse
SEMS University of North Dakota SEMS project 3 minutes of totality from Grand Forks.
SWAN from India.
Live Webcast of 10 Dec Lunar Eclipse
Lunar Eclipse over the Colorado Rocky Mountains
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