Saros 37

Catalog of Lunar Eclipses of Saros 37

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 37

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 37 . 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 37
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
1-38 -1492-Apr-0316:51:27 34888 1874 -43188 Nb a- -1.5318 0.0198-0.9254 37.6 - -
2-37 -1474-Apr-1500:24:03 34509 1819 -42965 N a- -1.4691 0.1344-0.8099 96.9 - -
3-36 -1456-Apr-2507:51:31 34132 1764 -42742 N a- -1.4024 0.2566-0.6874132.6 - -
4-35 -1438-May-0615:16:00 33757 1710 -42519 N a- -1.3334 0.3834-0.5610160.4 - -
5-34 -1420-May-1622:38:09 33384 1656 -42296 N a- -1.2630 0.5131-0.4323183.5 - -
6-33 -1402-May-2805:58:17 33013 1604 -42073 N a- -1.1912 0.6457-0.3015203.6 - -
7-32 -1384-Jun-0713:19:07 32644 1552 -41850 N a- -1.1203 0.7769-0.1726220.9 - -
8-31 -1366-Jun-1820:41:06 32278 1500 -41627 N a- -1.0510 0.9056-0.0470236.0 - -
9-30 -1348-Jun-2904:06:30 31913 1450 -41404 P a- -0.9849 1.0289 0.0725249.0 58.9 -
10-29 -1330-Jul-1011:34:31 31551 1400 -41181 P a- -0.9215 1.1473 0.1867260.4 93.2 -
11-28 -1312-Jul-2019:08:54 31190 1351 -40958 P a- -0.8641 1.2551 0.2897270.0114.7 -
12-27 -1294-Aug-0102:48:31 30832 1303 -40735 P a- -0.8116 1.3540 0.3834278.3130.4 -
13-26 -1276-Aug-1110:35:19 30475 1255 -40512 P a- -0.7656 1.4412 0.4652285.3142.2 -
14-25 -1258-Aug-2218:28:32 30121 1208 -40289 P a- -0.7255 1.5177 0.5359291.2151.4 -
15-24 -1240-Sep-0202:30:14 29769 1162 -40066 P a- -0.6930 1.5802 0.5926296.1158.1 -
16-23 -1222-Sep-1310:39:13 29419 1117 -39843 P a- -0.6674 1.6302 0.6368300.2163.2 -
17-22 -1204-Sep-2318:54:48 29070 1072 -39620 P a- -0.6479 1.6687 0.6696303.5166.8 -
18-21 -1186-Oct-0503:17:51 28724 1028 -39397 P a- -0.6352 1.6947 0.6902306.1169.2 -
19-20 -1168-Oct-1511:46:26 28380 985 -39174 P a- -0.6276 1.7112 0.7016308.2170.7 -
20-19 -1150-Oct-2620:20:03 28039 943 -38951 P a- -0.6252 1.7180 0.7039309.8171.4 -
21-18 -1132-Nov-0604:55:20 27699 901 -38728 P a- -0.6247 1.7209 0.7027311.1171.7 -
22-17 -1114-Nov-1713:33:27 27361 860 -38505 P a- -0.6275 1.7176 0.6958312.1171.6 -
23-16 -1096-Nov-2722:10:37 27025 820 -38282 P a- -0.6300 1.7146 0.6899313.1171.5 -
24-15 -1078-Dec-0906:46:15 26692 781 -38059 P a- -0.6320 1.7120 0.6849314.1171.5 -
25-14 -1060-Dec-1915:17:25 26360 742 -37836 P a- -0.6310 1.7148 0.6860315.3172.1 -
26-13 -1042-Dec-3023:43:57 26031 705 -37613 P a- -0.6269 1.7230 0.6929316.8173.3 -
27-12 -1023-Jan-1008:03:03 25703 668 -37390 P a- -0.6174 1.7408 0.7099318.8175.4 -
28-11 -1005-Jan-2116:14:08 25378 632 -37167 P a- -0.6020 1.7693 0.7379321.3178.6 -
29-10 -0987-Feb-0100:15:55 25055 617 -36944 P a- -0.5795 1.8105 0.7790324.4182.8 -
30 -9 -0969-Feb-1208:08:28 24734 610 -36721 P h- -0.5502 1.8645 0.8328328.0187.8 -
31 -8 -0951-Feb-2215:49:29 24415 603 -36498 P t- -0.5121 1.9343 0.9026332.1193.8 -
32 -7 -0933-Mar-0523:20:58 24098 596 -36275 P t- -0.4670 2.0172 0.9854336.6200.1 -
33 -6 -0915-Mar-1606:41:10 23783 590 -36052 T t- -0.4135 2.1154 1.0834341.3206.6 45.0
34 -5 -0897-Mar-2713:53:08 23470 583 -35829 T p- -0.3538 2.2253 1.1928345.9212.9 66.2
35 -4 -0879-Apr-0620:53:19 23159 576 -35606 T pp -0.2854 2.3511 1.3179350.3218.8 81.6
36 -3 -0861-Apr-1803:47:39 22850 569 -35383 T- pp -0.2130 2.4845 1.4500354.3223.7 92.6
37 -2 -0843-Apr-2810:32:55 22543 562 -35160 T- pp -0.1344 2.6296 1.5935357.6227.5100.2
38 -1 -0825-May-0917:14:37 22239 555 -34937 T- pp -0.0535 2.7790 1.7410360.0229.9104.3
39 0 -0807-May-1923:49:37 21936 549 -34714 T+ pp 0.0320 2.8197 1.7792361.5230.8105.0
40 1 -0789-May-3106:24:19 21636 542 -34491 T+ pp 0.1169 2.6655 1.6220362.0229.9101.9
Catalog of Lunar Eclipses of Saros 37
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 2 -0771-Jun-1012:56:05 21337 535 -34268 T+ pp 0.2029 2.5093 1.4623361.3227.2 94.5
42 3 -0753-Jun-2119:29:13 21041 528 -34045 T -t 0.2871 2.3568 1.3060359.6222.7 81.8
43 4 -0735-Jul-0202:03:26 20747 521 -33822 T -t 0.3696 2.2077 1.1526356.9216.4 61.1
44 5 -0717-Jul-1308:42:35 20455 514 -33599 T -t 0.4470 2.0678 1.0083353.4208.6 14.9
45 6 -0699-Jul-2315:26:12 20165 507 -33376 P -t 0.5201 1.9362 0.8718349.2199.3 -
46 7 -0681-Aug-0322:15:59 19877 500 -33153 P -t 0.5873 1.8154 0.7460344.6188.8 -
47 8 -0663-Aug-1405:13:21 19591 493 -32930 P -t 0.6474 1.7077 0.6331339.8177.6 -
48 9 -0645-Aug-2512:18:42 19307 486 -32707 P -t 0.7003 1.6133 0.5336335.0165.9 -
49 10 -0627-Sep-0419:32:23 19025 479 -32484 P -t 0.7459 1.5322 0.4474330.6154.3 -
50 11 -0609-Sep-1602:54:35 18745 472 -32261 P -t 0.7839 1.4649 0.3754326.6143.1 -
51 12 -0591-Sep-2610:25:45 18467 465 -32038 P -t 0.8141 1.4117 0.3177323.3132.9 -
52 13 -0573-Oct-0718:05:03 18192 458 -31815 P -t 0.8371 1.3714 0.2734320.7124.3 -
53 14 -0555-Oct-1801:50:41 17918 451 -31592 P -t 0.8547 1.3409 0.2396318.7117.0 -
54 15 -0537-Oct-2909:43:28 17647 444 -31369 P -t 0.8662 1.3211 0.2171317.5111.8 -
55 16 -0519-Nov-0817:40:42 17377 437 -31146 P -t 0.8741 1.3076 0.2016316.6108.0 -
56 17 -0501-Nov-2001:41:13 17110 431 -30923 P -t 0.8791 1.2991 0.1920316.1105.6 -
57 18 -0483-Nov-3009:42:04 16790 424 -30700 P -t 0.8837 1.2908 0.1834315.4103.3 -
58 19 -0465-Dec-1117:43:24 16480 417 -30477 P -t 0.8880 1.2826 0.1758314.6101.3 -
59 20 -0447-Dec-2201:42:21 16178 411 -30254 P -t 0.8945 1.2699 0.1644313.4 98.1 -
60 21 -0428-Jan-0209:36:52 15884 404 -30031 P -t 0.9046 1.2503 0.1470311.3 93.0 -
61 22 -0410-Jan-1217:26:02 15598 398 -29808 P -t 0.9192 1.2221 0.1216308.4 84.8 -
62 23 -0392-Jan-2401:08:10 15319 391 -29585 P -t 0.9396 1.1829 0.0860304.2 71.6 -
63 24 -0374-Feb-0308:43:05 15047 385 -29362 P -t 0.9659 1.1326 0.0396298.7 48.9 -
64 25 -0356-Feb-1416:08:31 14782 379 -29139 Nx -t 1.0002 1.0675-0.0210291.4 - -
65 26 -0338-Feb-2423:26:17 14523 372 -28916 N -t 1.0408 0.9906-0.0933282.3 - -
66 27 -0320-Mar-0706:34:34 14270 366 -28693 N -t 1.0891 0.8996-0.1794270.9 - -
67 28 -0302-Mar-1813:34:43 14022 360 -28470 N -t 1.1440 0.7963-0.2778256.9 - -
68 29 -0284-Mar-2820:26:39 13780 354 -28247 N -t 1.2056 0.6809-0.3883239.6 - -
69 30 -0266-Apr-0903:12:11 13543 348 -28024 N -t 1.2723 0.5560-0.5085218.5 - -
70 31 -0248-Apr-1909:52:26 13310 342 -27801 N -t 1.3436 0.4229-0.6371192.3 - -
71 32 -0230-Apr-3016:27:18 13083 336 -27578 N -t 1.4193 0.2820-0.7738158.6 - -
72 33 -0212-May-1023:00:25 12860 330 -27355 N -t 1.4963 0.1387-0.9132112.3 - -

Statistics for Lunar Eclipses of Saros 37

Lunar eclipses of Saros 37 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 -1492 Apr 03. The series will end with a penumbral eclipse near the northern edge of the penumbra on -0212 May 10. The total duration of Saros series 37 is 1280.14 years.

Summary of Saros 37
First Eclipse -1492 Apr 03
Last Eclipse -0212 May 10
Series Duration 1280.14 Years
No. of Eclipses 72
Sequence 8N 24P 12T 19P 9N

Saros 37 is composed of 72 lunar eclipses as follows:

Lunar Eclipses of Saros 37
Eclipse Type Symbol Number Percent
All Eclipses - 72100.0%
PenumbralN 17 23.6%
PartialP 43 59.7%
TotalT 12 16.7%

The 72 lunar eclipses of Saros 37 occur in the order of 8N 24P 12T 19P 9N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 37
Eclipse Type Symbol Number
Penumbral N 8
Partial P 24
Total T 12
Partial P 19
Penumbral N 9

The longest and shortest eclipses of Saros 37 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 37
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse -0807 May 1901h44m59s -
Shortest Total Lunar Eclipse -0717 Jul 1300h14m54s -
Longest Partial Lunar Eclipse -0933 Mar 0503h20m05s -
Shortest Partial Lunar Eclipse -0374 Feb 0300h48m55s -
Longest Penumbral Lunar Eclipse -0356 Feb 1404h51m26s -
Shortest Penumbral Lunar Eclipse -1492 Apr 0300h37m34s -
Largest Partial Lunar Eclipse -0933 Mar 05 - 0.98540
Smallest Partial Lunar Eclipse -0374 Feb 03 - 0.03963

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.