Saros 74

Catalog of Lunar Eclipses of Saros 74

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 74

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 74 . 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 74
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
1-36 -0331-May-0714:03:24 14421 370 -28827 Nb a- 1.5504 0.0007-0.9743 7.3 - -
2-35 -0313-May-1821:14:20 14170 364 -28604 N h- 1.4831 0.1253-0.8520 97.8 - -
3-34 -0295-May-2904:23:04 13925 358 -28381 N h- 1.4145 0.2526-0.7276137.7 - -
4-33 -0277-Jun-0911:29:29 13684 352 -28158 N h- 1.3445 0.3829-0.6009168.2 - -
5-32 -0259-Jun-1918:34:56 13449 346 -27935 N h- 1.2743 0.5137-0.4741193.2 - -
6-31 -0241-Jul-0101:41:29 13219 340 -27712 N h- 1.2055 0.6423-0.3502214.3 - -
7-30 -0223-Jul-1108:50:11 12993 334 -27489 N t- 1.1390 0.7670-0.2307232.4 - -
8-29 -0205-Jul-2216:03:07 12772 328 -27266 N t- 1.0765 0.8845-0.1189247.7 - -
9-28 -0187-Aug-0123:18:57 12556 322 -27043 N t- 1.0169 0.9969-0.0126261.2 - -
10-27 -0169-Aug-1306:41:49 12343 316 -26820 P t- 0.9636 1.0978 0.0820272.5 65.8 -
11-26 -0151-Aug-2314:10:00 12134 311 -26597 P t- 0.9151 1.1901 0.1678282.2 93.3 -
12-25 -0133-Sep-0321:46:18 11929 305 -26374 P t- 0.8740 1.2689 0.2400290.3110.8 -
13-24 -0115-Sep-1405:28:30 11728 299 -26151 P t- 0.8384 1.3376 0.3021297.2123.6 -
14-23 -0097-Sep-2513:19:52 11530 294 -25928 P t- 0.8109 1.3912 0.3493302.7132.3 -
15-22 -0079-Oct-0521:17:05 11335 288 -25705 P t- 0.7889 1.4348 0.3867307.2138.9 -
16-21 -0061-Oct-1705:21:06 11144 283 -25482 P t- 0.7732 1.4665 0.4126310.9143.3 -
17-20 -0043-Oct-2713:29:59 10955 277 -25259 P t- 0.7621 1.4895 0.4303313.8146.3 -
18-19 -0025-Nov-0721:44:23 10769 272 -25036 P t- 0.7567 1.5017 0.4379315.9147.8 -
19-18 -0007-Nov-1806:00:36 10585 267 -24813 P t- 0.7531 1.5103 0.4425317.6148.9 -
20-17 0011-Nov-2914:18:22 10403 262 -24590 P t- 0.7516 1.5148 0.4436319.1149.5 -
21-16 0029-Dec-0922:35:16 10224 256 -24367 P t- 0.7501 1.5189 0.4451320.4150.0 -
22-15 0047-Dec-2106:51:09 10046 251 -24144 P t- 0.7486 1.5226 0.4470321.6150.7 -
23-14 0065-Dec-3115:01:21 9871 246 -23921 P t- 0.7430 1.5334 0.4566323.2152.4 -
24-13 0084-Jan-1123:07:20 9696 241 -23698 P t- 0.7347 1.5489 0.4715325.1154.9 -
25-12 0102-Jan-2207:04:50 9523 236 -23475 P t- 0.7200 1.5759 0.4985327.6159.0 -
26-11 0120-Feb-0214:55:48 9350 231 -23252 P t- 0.7006 1.6113 0.5345330.6164.0 -
27-10 0138-Feb-1222:35:17 9178 226 -23029 P t- 0.6726 1.6623 0.5863334.4170.7 -
28 -9 0156-Feb-2406:07:04 9007 221 -22806 P t- 0.6387 1.7239 0.6490338.6178.2 -
29 -8 0174-Mar-0613:26:42 8836 217 -22583 P t- 0.5956 1.8022 0.7286343.4186.6 -
30 -7 0192-Mar-1620:37:19 8666 212 -22360 P t- 0.5456 1.8933 0.8211348.4195.3 -
31 -6 0210-Mar-2803:36:21 8495 207 -22137 P t- 0.4865 2.0010 0.9301353.7204.2 -
32 -5 0228-Apr-0710:27:46 8324 203 -21914 T t- 0.4217 2.1194 1.0497358.8212.5 36.3
33 -4 0246-Apr-1817:09:52 8152 198 -21691 T t- 0.3497 2.2510 1.1823363.5220.0 66.6
34 -3 0264-Apr-2823:44:36 7980 194 -21468 T+ pp 0.2720 2.3931 1.3252367.6226.4 84.6
35 -2 0282-May-1006:13:27 7807 189 -21245 T+ pp 0.1897 2.5439 1.4764370.8231.3 96.5
36 -1 0300-May-2012:38:03 7634 185 -21022 T+ pp 0.1039 2.7013 1.6339373.1234.6103.7
37 0 0318-May-3118:59:47 7460 180 -20799 T+ pp 0.0161 2.8626 1.7949374.2236.0106.6
38 1 0336-Jun-1101:19:38 7284 176 -20576 T- pp -0.0731 2.7582 1.6899374.2235.6105.3
39 2 0354-Jun-2207:40:54 7109 172 -20353 T- pp -0.1612 2.5971 1.5277372.9233.1 99.6
40 3 0372-Jul-0214:04:20 6932 168 -20130 T- pp -0.2477 2.4392 1.3685370.4228.8 88.9
Catalog of Lunar Eclipses of Saros 74
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 4 0390-Jul-1320:31:01 6754 163 -19907 T -t -0.3314 2.2864 1.2139366.9222.7 71.7
42 5 0408-Jul-2403:03:28 6576 159 -19684 T -t -0.4105 2.1424 1.0679362.6215.0 42.4
43 6 0426-Aug-0409:42:45 6398 155 -19461 P -t -0.4839 2.0088 0.9321357.5206.0 -
44 7 0444-Aug-1416:30:16 6220 151 -19238 P -t -0.5508 1.8872 0.8081352.1196.0 -
45 8 0462-Aug-2523:25:10 6042 147 -19015 P -t -0.6118 1.7766 0.6950346.5185.3 -
46 9 0480-Sep-0506:30:24 5865 143 -18792 P -t -0.6645 1.6811 0.5970340.9174.4 -
47 10 0498-Sep-1613:44:53 5689 140 -18569 P -t -0.7099 1.5990 0.5126335.7163.7 -
48 11 0516-Sep-2621:09:27 5512 136 -18346 P -t -0.7472 1.5317 0.4431331.0153.7 -
49 12 0534-Oct-0804:43:09 5336 132 -18123 P -t -0.7772 1.4775 0.3871326.8144.7 -
50 13 0552-Oct-1812:26:33 5161 128 -17900 P -t -0.7999 1.4366 0.3449323.5137.3 -
51 14 0570-Oct-2920:18:04 4988 125 -17677 P -t -0.8163 1.4070 0.3143320.8131.5 -
52 15 0588-Nov-0904:15:27 4816 121 -17454 P -t -0.8282 1.3852 0.2923318.6127.0 -
53 16 0606-Nov-2012:19:26 4645 118 -17231 P -t -0.8353 1.3719 0.2794317.0124.2 -
54 17 0624-Nov-3020:26:41 4476 114 -17008 P -t -0.8398 1.3632 0.2719315.6122.4 -
55 18 0642-Dec-1204:36:49 4308 111 -16785 P -t -0.8428 1.3567 0.2674314.3121.2 -
56 19 0660-Dec-2212:45:36 4142 107 -16562 P -t -0.8473 1.3471 0.2605312.7119.5 -
57 20 0679-Jan-0220:54:50 3977 104 -16339 P -t -0.8519 1.3368 0.2537310.9117.8 -
58 21 0697-Jan-1304:59:57 3815 101 -16116 P -t -0.8601 1.3197 0.2407308.5114.8 -
59 22 0715-Jan-2413:00:56 3654 98 -15893 P -t -0.8723 1.2948 0.2207305.3109.9 -
60 23 0733-Feb-0320:55:14 3497 95 -15670 P -t -0.8903 1.2592 0.1903301.1102.3 -
61 24 0751-Feb-1504:43:50 3341 91 -15447 P -t -0.9135 1.2137 0.1506295.9 91.3 -
62 25 0769-Feb-2512:24:34 3189 88 -15224 P -t -0.9436 1.1554 0.0984289.3 74.1 -
63 26 0787-Mar-0819:58:04 3039 85 -15001 P -t -0.9799 1.0856 0.0348281.3 44.4 -
64 27 0805-Mar-1903:23:55 2893 82 -14778 Nx -t -1.0232 1.0031-0.0413271.5 - -
65 28 0823-Mar-3010:43:14 2750 79 -14555 N -t -1.0722 0.9098-0.1283259.9 - -
66 29 0841-Apr-0917:55:12 2610 77 -14332 N -t -1.1279 0.8045-0.2274245.9 - -
67 30 0859-Apr-2101:02:26 2474 74 -14109 N -t -1.1880 0.6913-0.3347229.5 - -
68 31 0877-May-0108:04:46 2343 71 -13886 N -t -1.2529 0.5694-0.4509209.8 - -
69 32 0895-May-1215:05:14 2215 68 -13663 N -t -1.3198 0.4441-0.5711186.7 - -
70 33 0913-May-2222:01:57 2091 66 -13440 N -t -1.3905 0.3119-0.6984157.7 - -
71 34 0931-Jun-0305:00:09 1972 63 -13217 N -t -1.4606 0.1811-0.8251121.0 - -
72 35 0949-Jun-1311:57:19 1857 61 -12994 Ne -t -1.5325 0.0474-0.9550 62.4 - -

Statistics for Lunar Eclipses of Saros 74

Lunar eclipses of Saros 74 all occur at the Moon’s ascending node and the Moon moves southward with each eclipse. The series will begin with a penumbral eclipse near the northern edge of the penumbra on -0331 May 07. The series will end with a penumbral eclipse near the southern edge of the penumbra on 0949 Jun 13. The total duration of Saros series 74 is 1280.14 years.

Summary of Saros 74
First Eclipse -0331 May 07
Last Eclipse 0949 Jun 13
Series Duration 1280.14 Years
No. of Eclipses 72
Sequence 9N 22P 11T 21P 9N

Saros 74 is composed of 72 lunar eclipses as follows:

Lunar Eclipses of Saros 74
Eclipse Type Symbol Number Percent
All Eclipses - 72100.0%
PenumbralN 18 25.0%
PartialP 43 59.7%
TotalT 11 15.3%

The 72 lunar eclipses of Saros 74 occur in the order of 9N 22P 11T 21P 9N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 74
Eclipse Type Symbol Number
Penumbral N 9
Partial P 22
Total T 11
Partial P 21
Penumbral N 9

The longest and shortest eclipses of Saros 74 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 74
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse 0318 May 3101h46m36s -
Shortest Total Lunar Eclipse 0228 Apr 0700h36m16s -
Longest Partial Lunar Eclipse 0426 Aug 0403h26m00s -
Shortest Partial Lunar Eclipse 0787 Mar 0800h44m22s -
Longest Penumbral Lunar Eclipse 0805 Mar 1904h31m32s -
Shortest Penumbral Lunar Eclipse -0331 May 0700h07m18s -
Largest Partial Lunar Eclipse 0426 Aug 04 - 0.93206
Smallest Partial Lunar Eclipse 0787 Mar 08 - 0.03483

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.