Saros 13

Catalog of Lunar Eclipses of Saros 13

Fred Espenak

Introduction

The periodicity and recurrence of lunar 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 penumbral lunar eclipses. The series will then produce several dozen partial eclipses, followed by several dozen total eclipses. The later portion of the series produces another set of partial eclipses before ending with a final group of penumbral eclipses.

Catalog of Lunar Eclipses of Saros 13

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 13 . The date and time of each eclipse is given for the instant of Greatest Eclipse. For eclipses between the years -1999 to 3000, the calendar date links to a web page containing additional details along with a diagram of the eclipse geometry 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 Saros Catalog of Lunar Eclipses.

Catalog of Lunar Eclipses of Saros 13
Seq Num Rel Num Calendar Date TD of Greatest Eclipse ΔT

s
ΔT Sigma
s
Luna Num Ecl Type QSE Gamma Pen Mag Um Mag Pen Dur
m
Par Dur
m
Tot Dur
m
1-37 -2313-May-2018:50:41 54343 5147 -53341 Nb a- -1.5256 0.0381-0.9210 53.2 - -
2-36 -2295-May-3102:05:46 53869 5060 -53118 N a- -1.4578 0.1642-0.7983109.5 - -
3-35 -2277-Jun-1109:20:31 53398 4974 -52895 N a- -1.3905 0.2897-0.6768144.3 - -
4-34 -2259-Jun-2116:39:00 52929 4888 -52672 N a- -1.3268 0.4090-0.5621170.2 - -
5-33 -2241-Jul-0223:59:57 52462 4803 -52449 N a- -1.2656 0.5239-0.4523191.3 - -
6-32 -2223-Jul-1307:27:05 51996 4718 -52226 N a- -1.2101 0.6285-0.3533208.3 - -
7-31 -2205-Jul-2414:59:01 51533 4634 -52003 N a- -1.1594 0.7246-0.2633222.5 - -
8-30 -2187-Aug-0322:37:37 51072 4551 -51780 N a- -1.1149 0.8093-0.1848234.2 - -
9-29 -2169-Aug-1506:23:09 50613 4469 -51557 N a- -1.0770 0.8821-0.1185243.8 - -
10-28 -2151-Aug-2514:16:45 50157 4387 -51334 N a- -1.0466 0.9411-0.0659251.4 - -
11-27 -2133-Sep-0522:17:31 49702 4306 -51111 N a- -1.0227 0.9883-0.0252257.6 - -
12-26 -2115-Sep-1606:25:43 49249 4226 -50888 P a- -1.0056 1.0227 0.0031262.3 12.8 -
13-25 -2097-Sep-2714:40:34 48799 4146 -50665 P a- -0.9948 1.0455 0.0199265.7 32.4 -
14-24 -2079-Oct-0723:01:26 48350 4067 -50442 P a- -0.9897 1.0577 0.0267268.1 37.6 -
15-23 -2061-Oct-1907:26:01 47904 3988 -50219 P a- -0.9884 1.0626 0.0267269.7 37.7 -
16-22 -2043-Oct-2915:54:36 47459 3911 -49996 P a- -0.9909 1.0602 0.0199270.6 32.7 -
17-21 -2025-Nov-1000:24:13 47017 3834 -49773 P a- -0.9948 1.0549 0.0109271.1 24.3 -
18-20 -2007-Nov-2008:53:51 46577 3758 -49550 P h- -0.9996 1.0476 0.0006271.4 5.7 -
19-19 -1989-Dec-0117:20:08 46138 3682 -49327 Nx h- -1.0025 1.0435-0.0059271.9 - -
20-18 -1971-Dec-1201:43:20 45702 3607 -49104 Nx h- -1.0036 1.0423-0.0087272.7 - -
21-17 -1953-Dec-2310:00:15 45268 3533 -48881 Nx h- -1.0002 1.0492-0.0031274.3 - -
22-16 -1934-Jan-0218:09:32 44836 3459 -48658 P h- -0.9915 1.0655 0.0126276.9 26.5 -
23-15 -1916-Jan-1402:09:45 44406 3387 -48435 P t- -0.9762 1.0936 0.0405280.5 47.5 -
24-14 -1898-Jan-2410:00:25 43978 3314 -48212 P t- -0.9539 1.1344 0.0814285.3 67.2 -
25-13 -1880-Feb-0417:40:59 43553 3243 -47989 P t- -0.9242 1.1889 0.1361291.2 86.5 -
26-12 -1862-Feb-1501:09:51 43129 3172 -47766 P t- -0.8856 1.2594 0.2071298.2105.9 -
27-11 -1844-Feb-2608:28:31 42707 3102 -47543 P t- -0.8393 1.3442 0.2923306.1124.6 -
28-10 -1826-Mar-0815:36:07 42288 3033 -47320 P t- -0.7847 1.4442 0.3926314.5142.6 -
29 -9 -1808-Mar-1822:34:10 41870 2964 -47097 P t- -0.7229 1.5576 0.5060323.2159.6 -
30 -8 -1790-Mar-3005:22:30 41455 2896 -46874 P t- -0.6536 1.6849 0.6332331.9175.3 -
31 -7 -1772-Apr-0912:03:34 41042 2829 -46651 P t- -0.5789 1.8221 0.7699340.3189.4 -
32 -6 -1754-Apr-2018:38:00 40630 2762 -46428 P t- -0.4993 1.9687 0.9156348.0201.8 -
33 -5 -1736-May-0101:06:08 40221 2696 -46205 T t- -0.4150 2.1239 1.0695355.0212.4 42.4
34 -4 -1718-May-1207:30:59 39814 2631 -45982 T tp -0.3287 2.2831 1.2270360.9220.9 72.9
35 -3 -1700-May-2213:53:08 39409 2567 -45759 T- pp -0.2409 2.4452 1.3870365.7227.4 89.9
36 -2 -1682-Jun-0220:15:38 39006 2503 -45536 T- pp -0.1536 2.6067 1.5460369.2231.9100.0
37 -1 -1664-Jun-1302:37:53 38605 2440 -45313 T- pp -0.0668 2.7675 1.7038371.6234.5105.2
38 0 -1646-Jun-2409:04:11 38206 2378 -45090 T+ pp 0.0162 2.8620 1.7951372.9235.3106.3
39 1 -1628-Jul-0415:34:28 37809 2316 -44867 T+ pp 0.0952 2.7190 1.6484373.1234.4103.9
40 2 -1610-Jul-1522:10:35 37415 2255 -44644 T+ pp 0.1689 2.5855 1.5111372.5232.2 98.4
Catalog of Lunar Eclipses of Saros 13
Seq Num Rel Num Calendar Date TD of Greatest Eclipse ΔT

s
ΔT Sigma
s
Luna Num Ecl Type QSE Gamma Pen Mag Um Mag Pen Dur
m
Par Dur
m
Tot Dur
m
41 3 -1592-Jul-2604:53:33 37022 2195 -44421 T+ pp 0.2368 2.4630 1.3845371.3228.9 90.0
42 4 -1574-Aug-0611:45:06 36631 2135 -44198 T -p 0.2974 2.3538 1.2713369.5224.9 78.9
43 5 -1556-Aug-1618:46:05 36243 2076 -43975 T -t 0.3499 2.2596 1.1730367.6220.5 65.2
44 6 -1538-Aug-2801:55:17 35856 2018 -43752 T -t 0.3955 2.1779 1.0875365.5216.0 47.7
45 7 -1520-Sep-0709:15:21 35472 1961 -43529 T -t 0.4320 2.1128 1.0186363.7211.9 22.5
46 8 -1502-Sep-1816:44:17 35090 1904 -43306 P -t 0.4613 2.0608 0.9634362.0208.2 -
47 9 -1484-Sep-2900:23:14 34709 1848 -43083 P -t 0.4824 2.0233 0.9231360.7205.3 -
48 10 -1466-Oct-1008:08:32 34331 1793 -42860 P -t 0.4984 1.9951 0.8927359.6202.9 -
49 11 -1448-Oct-2016:02:05 33955 1738 -42637 P -t 0.5078 1.9788 0.8748358.9201.4 -
50 12 -1430-Oct-3123:59:39 33581 1685 -42414 P -t 0.5139 1.9679 0.8631358.2200.4 -
51 13 -1412-Nov-1108:01:18 33209 1631 -42191 P -t 0.5169 1.9624 0.8577357.7199.8 -
52 14 -1394-Nov-2216:03:54 32839 1579 -41968 P -t 0.5194 1.9574 0.8535357.0199.3 -
53 15 -1376-Dec-0300:07:25 32471 1527 -41745 P -t 0.5215 1.9526 0.8504356.3198.8 -
54 16 -1358-Dec-1408:07:40 32106 1476 -41522 P -t 0.5265 1.9421 0.8426355.1197.9 -
55 17 -1340-Dec-2416:04:40 31742 1426 -41299 P -t 0.5345 1.9258 0.8296353.5196.6 -
56 18 -1321-Jan-0423:56:01 31381 1377 -41076 P -t 0.5476 1.8997 0.8076351.4194.5 -
57 19 -1303-Jan-1507:42:14 31021 1328 -40853 P -t 0.5656 1.8644 0.7769348.7191.5 -
58 20 -1285-Jan-2615:19:09 30664 1280 -40630 P -t 0.5916 1.8139 0.7316345.0187.0 -
59 21 -1267-Feb-0522:49:38 30308 1233 -40407 P -t 0.6234 1.7528 0.6760340.5181.1 -
60 22 -1249-Feb-1706:10:39 29955 1186 -40184 P -t 0.6636 1.6761 0.6051334.9173.0 -
61 23 -1231-Feb-2713:25:27 29604 1141 -39961 P -t 0.7096 1.5889 0.5238328.2162.8 -
62 24 -1213-Mar-1020:29:59 29254 1096 -39738 P -t 0.7646 1.4850 0.4258319.9148.7 -
63 25 -1195-Mar-2103:29:49 28907 1051 -39515 P -t 0.8241 1.3729 0.3196310.3130.6 -
64 26 -1177-Apr-0110:21:27 28562 1008 -39292 P -t 0.8906 1.2479 0.2003298.8104.9 -
65 27 -1159-Apr-1117:09:54 28219 965 -39069 P -t 0.9603 1.1173 0.0750285.5 65.2 -
66 28 -1141-Apr-2223:52:38 27878 923 -38846 N -t 1.0353 0.9772-0.0601269.9 - -
67 29 -1123-May-0306:35:11 27540 882 -38623 N -t 1.1109 0.8361-0.1965252.2 - -
68 30 -1105-May-1413:15:49 27203 841 -38400 N -t 1.1885 0.6917-0.3368231.8 - -
69 31 -1087-May-2419:57:25 26868 802 -38177 N -t 1.2659 0.5477-0.4771208.3 - -
70 32 -1069-Jun-0502:41:00 26535 763 -37954 N -t 1.3421 0.4065-0.6153181.1 - -
71 33 -1051-Jun-1509:28:52 26205 725 -37731 N -t 1.4152 0.2710-0.7481149.1 - -
72 34 -1033-Jun-2616:22:10 25876 687 -37508 N -t 1.4848 0.1423-0.8747108.9 - -
73 35 -1015-Jul-0623:21:28 25550 651 -37285 Ne -t 1.5501 0.0216-0.9938 42.7 - -

Statistics for Lunar Eclipses of Saros 13

Lunar eclipses of Saros 13 all occur at the Moon’s descending node and the Moon moves northward with each eclipse. The series will begin with a penumbral eclipse near the southern edge of the penumbra on -2313 May 20. The series will end with a penumbral eclipse near the northern edge of the penumbra on -1015 Jul 06. The total duration of Saros series 13 is 1298.17 years.

Summary of Saros 13
First Eclipse -2313 May 20
Last Eclipse -1015 Jul 06
Series Duration 1298.17 Years
No. of Eclipses 73
Sequence 11N 7P 3N 11P 13T 20P 8N

Saros 13 is composed of 73 lunar eclipses as follows:

Lunar Eclipses of Saros 13
Eclipse Type Symbol Number Percent
All Eclipses - 73100.0%
PenumbralN 22 30.1%
PartialP 38 52.1%
TotalT 13 17.8%

The 73 lunar eclipses of Saros 13 occur in the order of 11N 7P 3N 11P 13T 20P 8N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 13
Eclipse Type Symbol Number
Penumbral N 11
Partial P 7
Penumbral N 3
Partial P 11
Total T 13
Partial P 20
Penumbral N 8

The longest and shortest eclipses of Saros 13 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 13
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse -1646 Jun 2401h46m17s -
Shortest Total Lunar Eclipse -1520 Sep 0700h22m30s -
Longest Partial Lunar Eclipse -1502 Sep 1803h28m12s -
Shortest Partial Lunar Eclipse -2007 Nov 2000h05m42s -
Longest Penumbral Lunar Eclipse -1953 Dec 2304h34m21s -
Shortest Penumbral Lunar Eclipse -1015 Jul 0600h42m42s -
Largest Partial Lunar Eclipse -1502 Sep 18 - 0.96336
Smallest Partial Lunar Eclipse -2007 Nov 20 - 0.00059

Links to Additional Lunar Eclipse Predictions

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 Lunar Eclipses: -1999 to +3000 and 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.