Saros 81

Panorama of Solar Eclipses of Saros 81

Fred Espenak

Introduction

A solar eclipse occurs whenever the Moon's shadow passes across Earth's surface. At least two solar eclipses and as many as five occur every year.

The periodicity and recurrence of solar eclipses is governed by the Saros cycle, a period of approximately 6,585.3 days (18 years 11 days 8 hours). When two eclipses are separated by a period of one Saros, they share a very similar geometry. The two eclipses occur at the same node with the Moon at nearly the same distance from Earth and the same time of year due to a harmonic in three cycles of the Moon's orbit. Thus, the Saros is useful for organizing eclipses into families or series. Each series typically lasts 12 to 13 centuries and contains 70 or more eclipses. Every saros series begins with a number of partial eclipses near one of Earth's polar regions. The series will then produce several dozen central eclipses before ending with a group of partial eclipses near the opposite pole. For more information, see Periodicity of Solar Eclipses.

Panorama of Solar Eclipses of Saros 81

A panorama of all solar eclipses belonging to Saros 81 is presented here. Each map depicts the geographic region of visibility for a single eclipse. For central eclipses, the total or annular path is plotted in either blue (total) or red (annular). The date and time is given for the instant of Greatest Eclipse. Every map serves as a hyperlink to the EclipseWise Prime page for that eclipse where a larger map and complete details for the eclipse can be found. Visit the Key to Solar Eclipse Maps for a detailed explanation of these maps. Near the bottom of the page are a series of hyperlinks for more on solar eclipses.

The exeligmos is a period of three Saros cycles and is equal to approximately 54 years 33 days. Because it is nearly an integral number of days in length, two eclipses separated by 1 exeligmos (= 3 Saroses) not only share all the characterists of a Saros, but also take place in approximately the same geographic location.

The Saros panorama below is arranged in horizontal rows of 3 eclipses. So one eclipse to the left or right is a difference of 1 Saros cycle, and one eclipse above or below is a difference of 1 exeligmos. By scanning a column of the table, it reveals how the geographic visibility of eclipses separated by an exeligmos slowly changes.

  • Click on any global map to go directly to the EclipseWise Prime Page for more information, tables, diagrams and maps. Key to Solar Eclipse Maps explains the features in these maps.
  • Beneath each global eclipse map is a link Google Eclipse Map, that takes you to an interactive Google Map with the eclipse path plotted.

For more information on this series see Statistics for Solar Eclipses of Saros 81 .

Panorama of Solar Eclipses of Saros 81
Partial Solar Eclipse
-0322 May 12

Google Eclipse Map
Partial Solar Eclipse
-0304 May 22

Google Eclipse Map
Partial Solar Eclipse
-0286 Jun 03

Google Eclipse Map
Partial Solar Eclipse
-0268 Jun 13

Google Eclipse Map
Partial Solar Eclipse
-0250 Jun 24

Google Eclipse Map
Partial Solar Eclipse
-0232 Jul 04

Google Eclipse Map
Partial Solar Eclipse
-0214 Jul 16

Google Eclipse Map
Annular Solar Eclipse
-0196 Jul 26

Google Eclipse Map
Annular Solar Eclipse
-0178 Aug 06

Google Eclipse Map
Annular Solar Eclipse
-0160 Aug 17

Google Eclipse Map
Annular Solar Eclipse
-0142 Aug 28

Google Eclipse Map
Annular Solar Eclipse
-0124 Sep 07

Google Eclipse Map
Hybrid Solar Eclipse
-0106 Sep 19

Google Eclipse Map
Hybrid Solar Eclipse
-0088 Sep 29

Google Eclipse Map
Hybrid Solar Eclipse
-0070 Oct 10

Google Eclipse Map
Hybrid Solar Eclipse
-0052 Oct 21

Google Eclipse Map
Hybrid Solar Eclipse
-0034 Nov 01

Google Eclipse Map
Hybrid Solar Eclipse
-0016 Nov 11

Google Eclipse Map
Hybrid Solar Eclipse
0002 Nov 23

Google Eclipse Map
Hybrid Solar Eclipse
0020 Dec 03

Google Eclipse Map
Hybrid Solar Eclipse
0038 Dec 14

Google Eclipse Map
Total Solar Eclipse
0056 Dec 25

Google Eclipse Map
Total Solar Eclipse
0075 Jan 05

Google Eclipse Map
Total Solar Eclipse
0093 Jan 16

Google Eclipse Map
Total Solar Eclipse
0111 Jan 27

Google Eclipse Map
Total Solar Eclipse
0129 Feb 06

Google Eclipse Map
Total Solar Eclipse
0147 Feb 18

Google Eclipse Map
Total Solar Eclipse
0165 Feb 28

Google Eclipse Map
Total Solar Eclipse
0183 Mar 11

Google Eclipse Map
Total Solar Eclipse
0201 Mar 22

Google Eclipse Map
Total Solar Eclipse
0219 Apr 02

Google Eclipse Map
Total Solar Eclipse
0237 Apr 12

Google Eclipse Map
Total Solar Eclipse
0255 Apr 24

Google Eclipse Map
Total Solar Eclipse
0273 May 04

Google Eclipse Map
Total Solar Eclipse
0291 May 15

Google Eclipse Map
Total Solar Eclipse
0309 May 25

Google Eclipse Map
Total Solar Eclipse
0327 Jun 06

Google Eclipse Map
Total Solar Eclipse
0345 Jun 16

Google Eclipse Map
Total Solar Eclipse
0363 Jun 27

Google Eclipse Map
Total Solar Eclipse
0381 Jul 08

Google Eclipse Map
Total Solar Eclipse
0399 Jul 19

Google Eclipse Map
Total Solar Eclipse
0417 Jul 29

Google Eclipse Map
Total Solar Eclipse
0435 Aug 10

Google Eclipse Map
Total Solar Eclipse
0453 Aug 20

Google Eclipse Map
Total Solar Eclipse
0471 Aug 31

Google Eclipse Map
Total Solar Eclipse
0489 Sep 11

Google Eclipse Map
Total Solar Eclipse
0507 Sep 22

Google Eclipse Map
Total Solar Eclipse
0525 Oct 02

Google Eclipse Map
Total Solar Eclipse
0543 Oct 14

Google Eclipse Map
Total Solar Eclipse
0561 Oct 24

Google Eclipse Map
Total Solar Eclipse
0579 Nov 04

Google Eclipse Map
Total Solar Eclipse
0597 Nov 15

Google Eclipse Map
Total Solar Eclipse
0615 Nov 26

Google Eclipse Map
Total Solar Eclipse
0633 Dec 07

Google Eclipse Map
Total Solar Eclipse
0651 Dec 18

Google Eclipse Map
Total Solar Eclipse
0669 Dec 28

Google Eclipse Map
Total Solar Eclipse
0688 Jan 09

Google Eclipse Map
Total Solar Eclipse
0706 Jan 19

Google Eclipse Map
Total Solar Eclipse
0724 Jan 30

Google Eclipse Map
Total Solar Eclipse
0742 Feb 10

Google Eclipse Map
Total Solar Eclipse
0760 Feb 21

Google Eclipse Map
Total Solar Eclipse
0778 Mar 03

Google Eclipse Map
Total Solar Eclipse
0796 Mar 14

Google Eclipse Map
Total Solar Eclipse
0814 Mar 25

Google Eclipse Map
Total Solar Eclipse
0832 Apr 04

Google Eclipse Map
Partial Solar Eclipse
0850 Apr 16

Google Eclipse Map
Partial Solar Eclipse
0868 Apr 26

Google Eclipse Map
Partial Solar Eclipse
0886 May 07

Google Eclipse Map
Partial Solar Eclipse
0904 May 18

Google Eclipse Map
Partial Solar Eclipse
0922 May 29

Google Eclipse Map
Partial Solar Eclipse
0940 Jun 08

Google Eclipse Map
Partial Solar Eclipse
0958 Jun 19

Google Eclipse Map

Statistics for Solar Eclipses of Saros 81

Solar eclipses of Saros 81 all occur at the Moon’s ascending node and the Moon moves southward with each eclipse. The series began with a partial eclipse in the northern hemisphere on -0322 May 12. The series ended with a partial eclipse in the southern hemisphere on 0958 Jun 19. The total duration of Saros series 81 is 1280.14 years.

Summary of Saros 81
First Eclipse -0322 May 12
Last Eclipse 0958 Jun 19
Series Duration 1280.14 Years
No. of Eclipses 72
Sequence 7P 5A 9H 44T 7P

Saros 81 is composed of 72 solar eclipses as follows:

Solar Eclipses of Saros 81
Eclipse Type Symbol Number Percent
All Eclipses - 72100.0%
PartialP 14 19.4%
AnnularA 5 6.9%
TotalT 44 61.1%
HybridH 9 12.5%

Umbral eclipses (annular, total and hybrid) can be further classified as either: 1) Central (two limits), 2) Central (one limit) or 3) Non-Central (one limit). The statistical distribution of these classes in Saros series 81 appears in the following table.

Umbral Eclipses of Saros 81
Classification Number Percent
All Umbral Eclipses 58100.0%
Central (two limits) 58100.0%
Central (one limit) 0 0.0%
Non-Central (one limit) 0 0.0%

The 72 eclipses in Saros 81 occur in the following order : 7P 5A 9H 44T 7P

The longest and shortest central eclipses of Saros 81 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Solar Eclipses of Saros 81
Extrema Type Date Duration Magnitude
Longest Annular Solar Eclipse -0196 Jul 2600m31s -
Shortest Annular Solar Eclipse -0124 Sep 0700m00s -
Longest Total Solar Eclipse 0363 Jun 2707m24s -
Shortest Total Solar Eclipse 0832 Apr 0400m47s -
Longest Hybrid Solar Eclipse 0038 Dec 1401m19s -
Shortest Hybrid Solar Eclipse -0106 Sep 1900m03s -
Largest Partial Solar Eclipse -0214 Jul 16 - 0.90686
Smallest Partial Solar Eclipse -0322 May 12 - 0.03342

Eclipse Publications

by Fred Espenak

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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 books Five Millennium Canon of Solar Eclipses: -1999 to +3000 and Thousand Year Canon of Solar 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.