Saros 33

Catalog of Lunar Eclipses of Saros 33

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 33

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 33 . 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 33
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 -1662-May-2207:37:03 38562 2433 -45289 Nb h- -1.5446 0.0329-0.9851 53.1 - -
2-35 -1644-Jun-0114:24:27 38163 2371 -45066 N h- -1.4613 0.1842-0.8306123.4 - -
3-34 -1626-Jun-1221:16:11 37767 2309 -44843 N h- -1.3800 0.3322-0.6802162.8 - -
4-33 -1608-Jun-2304:12:52 37372 2248 -44620 N h- -1.3012 0.4756-0.5347191.4 - -
5-32 -1590-Jul-0411:17:05 36980 2188 -44397 N a- -1.2272 0.6106-0.3981213.3 - -
6-31 -1572-Jul-1418:29:21 36589 2129 -44174 N a- -1.1588 0.7356-0.2720230.3 - -
7-30 -1554-Jul-2601:49:52 36201 2070 -43951 N a- -1.0960 0.8506-0.1564243.9 - -
8-29 -1536-Aug-0509:20:36 35815 2012 -43728 N a- -1.0404 0.9524-0.0542254.5 - -
9-28 -1518-Aug-1617:01:27 35431 1955 -43505 P a- -0.9921 1.0409 0.0345262.7 42.4 -
10-27 -1500-Aug-2700:53:17 35049 1898 -43282 P a- -0.9520 1.1145 0.1081268.8 74.0 -
11-26 -1482-Sep-0708:54:12 34669 1842 -43059 P a- -0.9184 1.1761 0.1697273.4 91.6 -
12-25 -1464-Sep-1717:05:33 34291 1787 -42836 P a- -0.8929 1.2229 0.2165276.5102.5 -
13-24 -1446-Sep-2901:25:38 33915 1733 -42613 P a- -0.8738 1.2578 0.2517278.5109.6 -
14-23 -1428-Oct-0909:53:43 33541 1679 -42390 P a- -0.8607 1.2816 0.2760279.5114.1 -
15-22 -1410-Oct-2018:28:23 33169 1626 -42167 P a- -0.8525 1.2963 0.2915279.8116.6 -
16-21 -1392-Oct-3103:08:21 32800 1573 -41944 P a- -0.8479 1.3039 0.3005279.6118.0 -
17-20 -1374-Nov-1111:52:25 32432 1522 -41721 P a- -0.8465 1.3056 0.3040278.9118.3 -
18-19 -1356-Nov-2120:37:15 32067 1471 -41498 P a- -0.8451 1.3069 0.3077278.1118.7 -
19-18 -1338-Dec-0305:23:23 31703 1421 -41275 P a- -0.8443 1.3069 0.3106277.3118.9 -
20-17 -1320-Dec-1314:07:17 31342 1372 -41052 P a- -0.8410 1.3114 0.3185276.8120.0 -
21-16 -1302-Dec-2422:48:34 30982 1323 -40829 P a- -0.8352 1.3200 0.3309276.5121.8 -
22-15 -1283-Jan-0407:24:11 30625 1275 -40606 P a- -0.8242 1.3381 0.3533277.0125.2 -
23-14 -1265-Jan-1515:55:16 30270 1228 -40383 P a- -0.8089 1.3637 0.3835277.9129.6 -
24-13 -1247-Jan-2600:19:28 29917 1181 -40160 P a- -0.7873 1.4011 0.4256279.6135.5 -
25-12 -1229-Feb-0608:36:02 29566 1136 -39937 P a- -0.7589 1.4507 0.4801282.1142.4 -
26-11 -1211-Feb-1616:44:55 29217 1091 -39714 P a- -0.7237 1.5128 0.5470285.1150.3 -
27-10 -1193-Feb-2800:46:23 28870 1047 -39491 P a- -0.6819 1.5871 0.6260288.6158.5 -
28 -9 -1175-Mar-1008:40:21 28525 1003 -39268 P a- -0.6335 1.6737 0.7171292.5167.0 -
29 -8 -1157-Mar-2116:26:52 28182 960 -39045 P a- -0.5784 1.7728 0.8202296.5175.3 -
30 -7 -1139-Apr-0100:07:29 27842 919 -38822 P a- -0.5179 1.8818 0.9330300.6183.2 -
31 -6 -1121-Apr-1207:42:40 27503 877 -38599 T a- -0.4528 1.9998 1.0540304.4190.3 34.2
32 -5 -1103-Apr-2215:12:37 27167 837 -38376 T a- -0.3829 2.1266 1.1835307.9196.7 60.7
33 -4 -1085-May-0322:39:31 26832 797 -38153 T p- -0.3103 2.2590 1.3178311.0201.9 76.4
34 -3 -1067-May-1406:04:02 26500 759 -37930 T- p- -0.2355 2.3955 1.4555313.5206.1 87.0
35 -2 -1049-May-2513:28:31 26169 721 -37707 T- p- -0.1605 2.5329 1.5934315.3209.1 93.9
36 -1 -1031-Jun-0420:51:51 25841 683 -37484 T- pp -0.0844 2.6726 1.7330316.5210.9 98.0
37 0 -1013-Jun-1604:18:34 25515 647 -37261 T- pp -0.0113 2.8071 1.8667317.0211.6 99.5
38 1 -0995-Jun-2611:46:58 25191 620 -37038 T+ pp 0.0603 2.7180 1.7761317.0211.2 98.7
39 2 -0977-Jul-0719:20:38 24869 613 -36815 T+ -p 0.1275 2.5958 1.6518316.4209.9 95.8
40 3 -0959-Jul-1802:57:33 24549 606 -36592 T+ -p 0.1918 2.4791 1.5324315.5207.9 91.1
Catalog of Lunar Eclipses of Saros 33
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 -0941-Jul-2910:42:22 24231 599 -36369 T+ -p 0.2493 2.3752 1.4254314.2205.3 84.9
42 5 -0923-Aug-0818:32:42 23915 592 -36146 T -p 0.3018 2.2808 1.3273312.9202.3 77.1
43 6 -0905-Aug-2002:30:51 23601 586 -35923 T -p 0.3473 2.1992 1.2418311.5199.2 68.2
44 7 -0887-Aug-3010:36:07 23290 579 -35700 T -p 0.3867 2.1290 1.1675310.3196.2 58.2
45 8 -0869-Sep-1018:50:21 22980 572 -35477 T -a 0.4183 2.0732 1.1073309.3193.4 47.5
46 9 -0851-Sep-2103:11:34 22673 565 -35254 T -a 0.4436 2.0289 1.0588308.6191.1 35.7
47 10 -0833-Oct-0211:39:46 22367 558 -35031 T -a 0.4628 1.9959 1.0216308.2189.2 21.9
48 11 -0815-Oct-1220:14:22 22064 551 -34808 P -a 0.4761 1.9734 0.9952308.2187.9 -
49 12 -0797-Oct-2404:55:06 21762 545 -34585 P -a 0.4843 1.9603 0.9784308.5187.2 -
50 13 -0779-Nov-0313:39:20 21463 538 -34362 P -a 0.4891 1.9530 0.9678309.1186.8 -
51 14 -0761-Nov-1422:26:58 21166 531 -34139 P -a 0.4910 1.9511 0.9631309.8186.8 -
52 15 -0743-Nov-2507:15:18 20871 524 -33916 P -a 0.4920 1.9503 0.9600310.6187.0 -
53 16 -0725-Dec-0616:04:08 20578 517 -33693 P -a 0.4923 1.9508 0.9586311.4187.3 -
54 17 -0707-Dec-1700:49:13 20287 510 -33470 P -a 0.4954 1.9457 0.9522312.0187.2 -
55 18 -0689-Dec-2809:31:58 19998 503 -33247 P -a 0.5002 1.9373 0.9429312.5187.1 -
56 19 -0670-Jan-0718:08:16 19711 496 -33024 P -a 0.5102 1.9193 0.9244312.6186.3 -
57 20 -0652-Jan-1902:38:31 19426 489 -32801 P -a 0.5246 1.8929 0.8979312.3184.9 -
58 21 -0634-Jan-2910:59:34 19143 482 -32578 P -a 0.5462 1.8532 0.8582311.5182.6 -
59 22 -0616-Feb-0919:13:01 18863 475 -32355 P -a 0.5735 1.8031 0.8083310.1179.2 -
60 23 -0598-Feb-2003:16:34 18584 468 -32132 P -a 0.6086 1.7386 0.7439307.9174.3 -
61 24 -0580-Mar-0211:10:04 18308 461 -31909 P -a 0.6512 1.6604 0.6659304.7167.6 -
62 25 -0562-Mar-1318:53:46 18033 454 -31686 P -a 0.7011 1.5689 0.5742300.5158.5 -
63 26 -0544-Mar-2402:28:20 17761 447 -31463 P -a 0.7576 1.4653 0.4703295.0146.2 -
64 27 -0526-Apr-0409:54:02 17491 440 -31240 P -a 0.8207 1.3499 0.3542288.0129.6 -
65 28 -0508-Apr-1417:10:59 17222 433 -31017 P -a 0.8901 1.2232 0.2263279.2105.9 -
66 29 -0490-Apr-2600:21:19 16924 427 -30794 P -a 0.9639 1.0886 0.0901268.3 68.3 -
67 30 -0472-May-0607:25:19 16609 420 -30571 N -a 1.0416 0.9471-0.0536255.1 - -
68 31 -0454-May-1714:24:01 16304 414 -30348 N -h 1.1226 0.8000-0.2034239.0 - -
69 32 -0436-May-2721:19:16 16007 407 -30125 N -h 1.2052 0.6499-0.3567219.7 - -
70 33 -0418-Jun-0804:12:32 15718 401 -29902 N -h 1.2880 0.5000-0.5105196.4 - -
71 34 -0400-Jun-1811:05:34 15436 394 -29679 N -h 1.3697 0.3522-0.6626167.9 - -
72 35 -0382-Jun-2917:58:12 15161 388 -29456 N -h 1.4503 0.2069-0.8128131.0 - -
73 36 -0364-Jul-1000:54:14 14893 381 -29233 Ne -h 1.5266 0.0696-0.9554 77.3 - -

Statistics for Lunar Eclipses of Saros 33

Lunar eclipses of Saros 33 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 -1662 May 22. The series will end with a penumbral eclipse near the northern edge of the penumbra on -0364 Jul 10. The total duration of Saros series 33 is 1298.17 years.

Summary of Saros 33
First Eclipse -1662 May 22
Last Eclipse -0364 Jul 10
Series Duration 1298.17 Years
No. of Eclipses 73
Sequence 8N 22P 17T 19P 7N

Saros 33 is composed of 73 lunar eclipses as follows:

Lunar Eclipses of Saros 33
Eclipse Type Symbol Number Percent
All Eclipses - 73100.0%
PenumbralN 15 20.5%
PartialP 41 56.2%
TotalT 17 23.3%

The 73 lunar eclipses of Saros 33 occur in the order of 8N 22P 17T 19P 7N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 33
Eclipse Type Symbol Number
Penumbral N 8
Partial P 22
Total T 17
Partial P 19
Penumbral N 7

The longest and shortest eclipses of Saros 33 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 33
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse -1013 Jun 1601h39m27s -
Shortest Total Lunar Eclipse -0833 Oct 0200h21m53s -
Longest Partial Lunar Eclipse -0815 Oct 1203h07m54s -
Shortest Partial Lunar Eclipse -1518 Aug 1600h42m21s -
Longest Penumbral Lunar Eclipse -0472 May 0604h15m06s -
Shortest Penumbral Lunar Eclipse -1662 May 2200h53m05s -
Largest Partial Lunar Eclipse -0815 Oct 12 - 0.99515
Smallest Partial Lunar Eclipse -1518 Aug 16 - 0.03448

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.