Introduction

The Six Millennium Catalog of Lunar Eclipses is organized into a series of sixty 100-year web pages, each one covering a century of lunar eclipses. The 100-year table below covers the period 1001 to 1100 (1001 CE to 1100 CE) [1]. The date and time of each eclipse is given for the instant of Greatest Eclipse [2]. Each eclipse date links to a web page containing additional details and a map showing the geographic region of eclipse visibility for that eclipse. A description of each parameter in the catalog table can be found in Key to Catalog of Lunar Eclipses.

For an explanation of how eclipses are classified, see Lunar Eclipse Basics. The frequency of each eclipse type, the extremes in eclipse magnitude and duration, and other data for the century are presented in the Eclipse Statistics tables following the Catalog of Lunar Eclipses. To select a different century, visit the Index to Six Millennium Catalog of Lunar Eclipses.

Statistics for Lunar Eclipses: 1001 to 1100 (1001 CE to 1100 CE)

During the 11th century CE [1], Earth experienced 246 lunar eclipses. The following table shows the number of eclipses of each type over this period.

Lunar Eclipses: 1001 - 1100
Eclipse Type	Symbol	Number	Percent
All Eclipses	-	246	100.0%
Penumbral	N	87	35.4%
Partial	P	97	39.4%
Total	T	62	25.2%

Total eclipses can be further classified as either central or non-central:

• Central - Some portion of the Moon passes directly through the center of Earth’s umbral shadow.
  These are the deepest and longest type of lunar eclipse.
• Non-Central - The Moon passes completely within Earth’s umbral shadow but misses the center of the umbra.

The statistical distribution of these classes during the 11th century CE appears in the following table.

Total Eclipses
Classification	Number	Percent
All	62	100.0%
Central	48	77.4%
Non-Central	14	22.6%

There are two to five lunar eclipses in every calendar year. Statistics for the number of eclipses each year during the century are listed below.

Number of Eclipses Per Year
Number of Eclipses Per Year	Number of Years
2	68
3	18
4	14
5	0

The lunar eclipses with the longest and shortest durations, and with the largest and smallest magnitudes appear in the following two tables.

Extreme Durations of Lunar Eclipses
Extrema Type	Date	Duration
Longest Total Lunar Eclipse	1016 May 24	01h45m15s
Shortest Total Lunar Eclipse	1077 Aug 06	00h09m43s
Longest Partial Lunar Eclipse	1071 Jun 15	03h27m05s
Shortest Partial Lunar Eclipse	1050 Feb 09	00h08m36s
Longest Penumbral Lunar Eclipse	1032 Jan 30	04h50m56s
Shortest Penumbral Lunar Eclipse	1022 Aug 14	00h25m47s

Extreme Magnitudes of Lunar Eclipses
Extrema Type	Date	Umbral Magnitude	Penumbral Magnitude
Largest Total Lunar Eclipse	1092 Apr 24	1.87026	-
Smallest Total Lunar Eclipse	1077 Aug 06	1.00419	-
Largest Partial Lunar Eclipse	1001 Mar 12	0.99964	-
Smallest Partial Lunar Eclipse	1050 Feb 09	0.00121	-
Largest Penumbral Lunar Eclipse	1032 Jan 30	-	1.05510
Smallest Penumbral Lunar Eclipse	1022 Aug 14	-	0.00879

When four consecutive lunar eclipses are all total eclipses, the series is known as a tetrad. The are no tetrads occurring during this century.

During the century, 3 Saros series begin and 3 Saros series end. The table below gives the Saros series, number of eclipses in the series, the calendar date and whether it is the first or last eclipse in the series.

First or Last Eclipse in Saros Series
Saros Series	Number of Eclipses	Date	Pernumbral Magnitude	First/Last
75	72	1014 Jun 15	0.1010	Last
122	75	1022 Aug 14	0.0088	First
76	73	1043 May 26	0.0280	Last
123	73	1087 Aug 16	0.0342	First
77	72	1090 May 16	0.0188	Last
117	72	1094 Apr 03	0.0415	First

Footnotes

[1] The terms BCE and CE are abbreviations for "Before Common Era" and "Common Era," respectively. They are the secular equivalents to the BC and AD dating conventions. (See: Year Dating Conventions)

[2] Greatest eclipse is defined as the instant when the center of the Moon passes closest to the axis of Earth's shadows.

Index to Six Millennium Catolog of Lunar Eclipses

The links in the following table each open a web page containing a 100-year Catalog of Lunar Eclipses. Each line in a 100-year catalog lists the primary characteristics for a single eclipse; the eclipse date itself links to a web page containing further details, an eclipse diagram and map showing the geographic region of eclipse visibility.

Index to Six Millennium Catalog of Lunar Eclipses
Centuries
	-2999 to -2900	-2899 to -2800	-2799 to -2700	-2699 to -2600	-2599 to -2500
	-2499 to -2400	-2399 to -2300	-2299 to -2200	-2199 to -2100	-2099 to -2000
	-1999 to -1900	-1899 to -1800	-1799 to -1700	-1699 to -1600	-1599 to -1500
	-1499 to -1400	-1399 to -1300	-1299 to -1200	-1199 to -1100	-1099 to -1000
	-0999 to -0900	-0899 to -0800	-0799 to -0700	-0699 to -0600	-0599 to -0500
	-0499 to -0400	-0399 to -0300	-0299 to -0200	-0199 to -0100	-0099 to 0000
	0001 to 0100	0101 to 0200	0201 to 0300	0301 to 0400	0401 to 0500
	0501 to 0600	0601 to 0700	0701 to 0800	0801 to 0900	0901 to 1000
	1001 to 1100	1101 to 1200	1201 to 1300	1301 to 1400	1401 to 1500
	1501 to 1600	1601 to 1700	1701 to 1800	1801 to 1900	1901 to 2000
	2001 to 2100	2101 to 2200	2201 to 2300	2301 to 2400	2401 to 2500
	2501 to 2600	2601 to 2700	2701 to 2800	2801 to 2900	2901 to 3000

These web pages are part of the Six Millennium Catalog of Lunar Eclipses: -2999 to +3000

Links to Additional Lunar Eclipse Information

• Home - home page of EclipseWise with predictions for both solar and lunar eclipses

• Lunar Eclipses - primary page for lunar eclipse predictions
• Lunar Eclipse Links - detailed directory of links

• Six Millennium Catalog of Lunar Eclipses - covers the years -2999 to +3000 (3000 BCE to 3000 CE)
• Saros Catalog of Lunar Eclipses - covers Saros series -29 through 190
• Javascript Lunar Eclipse Explorer - calculate all lunar eclipses visible from a city

• Thousand Year Canon of Lunar Eclipses 1501 to 2500 - link to the publication

• MrEclipse.com - eclipse resources and tips on photography
• Lunar Eclipses for Beginners - a primer on lunar eclipse basics
• How to Photograph a Lunar Eclipse - instructions for imaging an eclipse of the Moon
• MrEclipse Photo Index - an index of lunar eclipse photographs

Calendar

The Gregorian calendar (also called the Western calendar) is internationally the most widely used civil calendar. It is named for Pope Gregory XIII, who introduced it in 1582. On this website, the Gregorian calendar is used for all calendar dates from 1582 Oct 15 onwards. Before that date, the Julian calendar is used. For more information on this topic, see Calendar Dates.

The Julian calendar does not include the year 0. Thus the year 1 BCE is followed by the year 1 CE (See: BCE/CE Dating Conventions). This is awkward for arithmetic calculations. Years in this catalog are numbered astronomically and include the year 0. Historians should note there is a difference of one year between astronomical dates and BCE dates. Thus, the astronomical year 0 corresponds to 1 BCE, and astronomical year -1 corresponds to 2 BCE, etc..

Eclipse Predictions

The eclipse predictions presented here were generated using the JPL DE406 solar and lunar ephemerides. The lunar coordinates have been calculated with respect to the Moon's Center of Mass.

The largest uncertainty in the eclipse predictions is caused by fluctuations in Earth's rotation due primarily to tidal friction of the Moon. The resultant drift in apparent clock time is expressed as ΔT and is determined as follows:

1. pre-1950's: ΔT calculated from empirical fits to historical records derived by Morrison and Stephenson (2004)
2. 1955-present: ΔT obtained from published observations
3. future: ΔT is extrapolated from current values weighted by the long term trend from tidal effects

A series of polynomial expressions have been derived to simplify the evaluation of ΔT for any time from -2999 to +3000. The uncertainty in ΔT over this period can be estimated from scatter in the measurements.

Acknowledgments

Some of the content on this web site is based on the book Thousand Year Canon of Lunar Eclipses 1501 to 2500. All eclipse calculations are by Fred Espenak, and he assumes full responsibility for their accuracy.

Permission is granted to reproduce eclipse data when accompanied by a link to this page and an acknowledgment:

"Eclipse Predictions by Fred Espenak, www.EclipseWise.com"

The use of diagrams and maps is permitted provided that they are NOT altered (except for re-sizing) and the embedded credit line is NOT removed or covered.