Saros 51

Catalog of Lunar Eclipses of Saros 51

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 51

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 51 . 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 51
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 -1105-Jun-1302:00:00 27201 841 -38399 Nb t- -1.5697 0.0046-1.0483 20.7 - -
2-35 -1087-Jun-2308:32:18 26867 801 -38176 N t- -1.4860 0.1575-0.8942119.3 - -
3-34 -1069-Jul-0415:11:05 26534 763 -37953 N t- -1.4064 0.3032-0.7478162.9 - -
4-33 -1051-Jul-1421:57:04 26204 724 -37730 N t- -1.3315 0.4404-0.6101193.4 - -
5-32 -1033-Jul-2604:52:10 25875 687 -37507 N t- -1.2625 0.5669-0.4835216.1 - -
6-31 -1015-Aug-0511:56:03 25549 651 -37284 N t- -1.1995 0.6826-0.3680233.8 - -
7-30 -0997-Aug-1619:11:22 25224 621 -37061 N t- -1.1446 0.7835-0.2673247.3 - -
8-29 -0979-Aug-2702:37:07 24902 614 -36838 N h- -1.0971 0.8707-0.1804257.7 - -
9-28 -0961-Sep-0710:13:22 24582 607 -36615 N h- -1.0573 0.9440-0.1074265.5 - -
10-27 -0943-Sep-1718:00:02 24264 600 -36392 Nx h- -1.0249 1.0035-0.0481271.3 - -
11-26 -0925-Sep-2901:57:19 23948 593 -36169 Nx a- -1.0000 1.0491-0.0024275.2 - -
12-25 -0907-Oct-0910:03:29 23634 586 -35946 P a- -0.9819 1.0822 0.0311277.7 41.5 -
13-24 -0889-Oct-2018:17:09 23322 580 -35723 P a- -0.9689 1.1055 0.0553279.1 54.9 -
14-23 -0871-Oct-3102:37:33 23012 573 -35500 P a- -0.9607 1.1198 0.0710279.5 61.9 -
15-22 -0853-Nov-1111:03:38 22704 566 -35277 P a- -0.9563 1.1270 0.0802279.2 65.5 -
16-21 -0835-Nov-2119:32:01 22398 559 -35054 P a- -0.9530 1.1316 0.0875278.6 68.2 -
17-20 -0817-Dec-0304:02:19 22095 552 -34831 P a- -0.9506 1.1344 0.0935277.8 70.2 -
18-19 -0799-Dec-1312:31:27 21793 545 -34608 P a- -0.9463 1.1402 0.1034277.3 73.5 -
19-18 -0781-Dec-2420:59:50 21494 538 -34385 P a- -0.9408 1.1482 0.1158276.9 77.4 -
20-17 -0762-Jan-0405:22:43 21196 532 -34162 P a- -0.9297 1.1659 0.1386277.3 84.2 -
21-16 -0744-Jan-1513:42:42 20901 525 -33939 P a- -0.9154 1.1893 0.1676278.1 91.9 -
22-15 -0726-Jan-2521:55:14 20608 518 -33716 P a- -0.8940 1.2256 0.2098279.9101.9 -
23-14 -0708-Feb-0606:02:07 20317 511 -33493 P a- -0.8672 1.2716 0.2619282.4112.7 -
24-13 -0690-Feb-1614:00:16 20027 504 -33270 P a- -0.8323 1.3325 0.3292285.8124.7 -
25-12 -0672-Feb-2721:52:49 19740 497 -33047 P a- -0.7919 1.4035 0.4065289.6136.6 -
26-11 -0654-Mar-1005:37:22 19455 490 -32824 P a- -0.7437 1.4887 0.4979293.9148.7 -
27-10 -0636-Mar-2013:15:16 19172 482 -32601 P a- -0.6892 1.5857 0.6009298.5160.2 -
28 -9 -0618-Mar-3120:46:48 18892 475 -32378 P a- -0.6287 1.6938 0.7147303.1171.1 -
29 -8 -0600-Apr-1104:13:43 18613 468 -32155 P a- -0.5636 1.8106 0.8367307.4180.9 -
30 -7 -0582-Apr-2211:35:50 18336 461 -31932 P a- -0.4937 1.9366 0.9675311.5189.6 -
31 -6 -0564-May-0218:54:37 18061 455 -31709 T a- -0.4200 2.0695 1.1047315.0197.0 47.8
32 -5 -0546-May-1402:11:53 17789 448 -31486 T a- -0.3444 2.2065 1.2453317.8203.0 69.9
33 -4 -0528-May-2409:28:46 17518 441 -31263 T- p- -0.2679 2.3454 1.3871320.0207.6 83.4
34 -3 -0510-Jun-0416:45:50 17250 434 -31040 T- p- -0.1909 2.4855 1.5296321.4210.9 92.2
35 -2 -0492-Jun-1500:05:25 16957 427 -30817 T- p- -0.1153 2.6234 1.6691322.1212.9 97.4
36 -1 -0474-Jun-2607:28:15 16642 421 -30594 T- pp -0.0419 2.7575 1.8044322.0213.6 99.8
37 0 -0456-Jul-0614:56:15 16335 414 -30371 T+ pp 0.0277 2.7833 1.8305321.4213.3 99.8
38 1 -0438-Jul-1722:28:17 16037 408 -30148 T+ pp 0.0944 2.6610 1.7080320.3212.1 97.8
39 2 -0420-Jul-2806:08:22 15747 401 -29925 T+ -p 0.1546 2.5510 1.5973318.8210.2 94.3
40 3 -0402-Aug-0813:54:33 15465 395 -29702 T+ -p 0.2099 2.4500 1.4951317.1207.7 89.3
Catalog of Lunar Eclipses of Saros 51
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 -0384-Aug-1821:49:55 15189 388 -29479 T+ -p 0.2580 2.3627 1.4063315.3205.1 83.6
42 5 -0366-Aug-3005:52:11 14920 382 -29256 T -p 0.3004 2.2857 1.3274313.5202.3 77.1
43 6 -0348-Sep-0914:04:33 14658 376 -29033 T -p 0.3346 2.2240 1.2637311.9199.7 70.6
44 7 -0330-Sep-2022:24:10 14402 370 -28810 T -p 0.3629 2.1732 1.2107310.5197.4 64.1
45 8 -0312-Oct-0106:51:56 14151 363 -28587 T -p 0.3844 2.1347 1.1702309.4195.4 58.3
46 9 -0294-Oct-1215:26:43 13906 357 -28364 T -p 0.4003 2.1066 1.1400308.5193.9 53.4
47 10 -0276-Oct-2300:08:35 13666 351 -28141 T -p 0.4106 2.0886 1.1203308.0192.8 49.7
48 11 -0258-Nov-0308:55:21 13432 345 -27918 T -p 0.4167 2.0782 1.1083307.7192.2 47.3
49 12 -0240-Nov-1317:45:38 13202 339 -27695 T -p 0.4201 2.0724 1.1015307.6191.8 45.9
50 13 -0222-Nov-2502:38:42 12976 333 -27472 T -p 0.4213 2.0706 1.0990307.6191.7 45.4
51 14 -0204-Dec-0511:32:57 12756 327 -27249 T -p 0.4220 2.0694 1.0976307.7191.6 45.1
52 15 -0186-Dec-1620:25:49 12539 322 -27026 T -p 0.4238 2.0660 1.0944307.7191.5 44.4
53 16 -0168-Dec-2705:16:18 12327 316 -26803 T -p 0.4277 2.0585 1.0875307.6191.3 42.9
54 17 -0149-Jan-0714:02:35 12118 310 -26580 T -a 0.4353 2.0442 1.0742307.2190.7 39.7
55 18 -0131-Jan-1722:44:13 11914 304 -26357 T -a 0.4467 2.0225 1.0539306.7189.8 34.0
56 19 -0113-Jan-2907:18:07 11713 299 -26134 T -a 0.4646 1.9889 1.0218305.7188.2 21.9
57 20 -0095-Feb-0815:45:37 11515 293 -25911 P -a 0.4878 1.9455 0.9800304.3186.0 -
58 21 -0077-Feb-2000:04:13 11320 288 -25688 P -a 0.5182 1.8889 0.9250302.4182.7 -
59 22 -0059-Mar-0208:14:41 11129 282 -25465 P -a 0.5552 1.8202 0.8580299.8178.3 -
60 23 -0041-Mar-1316:15:46 10940 277 -25242 P -a 0.5998 1.7377 0.7768296.5172.3 -
61 24 -0023-Mar-2400:09:07 10754 272 -25019 P -a 0.6504 1.6443 0.6846292.2164.6 -
62 25 -0005-Apr-0407:54:23 10571 266 -24796 P -a 0.7075 1.5393 0.5802286.9154.4 -
63 26 0013-Apr-1415:31:31 10390 261 -24573 P -a 0.7708 1.4229 0.4641280.3140.9 -
64 27 0031-Apr-2523:02:34 10210 256 -24350 P -a 0.8385 1.2988 0.3398272.3123.1 -
65 28 0049-May-0606:27:43 10033 251 -24127 P -a 0.9105 1.1671 0.2073262.7 98.2 -
66 29 0067-May-1713:48:48 9857 246 -23904 P -a 0.9853 1.0306 0.0693251.3 58.0 -
67 30 0085-May-2721:05:22 9683 241 -23681 N -a 1.0631 0.8889-0.0745237.7 - -
68 31 0103-Jun-0804:21:12 9509 236 -23458 N -a 1.1407 0.7479-0.2182222.0 - -
69 32 0121-Jun-1811:35:29 9337 231 -23235 N -a 1.2185 0.6068-0.3626203.5 - -
70 33 0139-Jun-2918:50:46 9165 226 -23012 N -a 1.2945 0.4694-0.5039182.1 - -
71 34 0157-Jul-1002:07:16 8994 221 -22789 N -a 1.3686 0.3356-0.6423156.6 - -
72 35 0175-Jul-2109:27:35 8823 216 -22566 N -a 1.4385 0.2099-0.7730125.8 - -
73 36 0193-Jul-3116:51:34 8653 212 -22343 N -a 1.5044 0.0919-0.8966 84.5 - -

Statistics for Lunar Eclipses of Saros 51

Lunar eclipses of Saros 51 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 -1105 Jun 13. The series will end with a penumbral eclipse near the northern edge of the penumbra on 0193 Jul 31. The total duration of Saros series 51 is 1298.17 years.

Summary of Saros 51
First Eclipse -1105 Jun 13
Last Eclipse 0193 Jul 31
Series Duration 1298.17 Years
No. of Eclipses 73
Sequence 11N 19P 26T 10P 7N

Saros 51 is composed of 73 lunar eclipses as follows:

Lunar Eclipses of Saros 51
Eclipse Type Symbol Number Percent
All Eclipses - 73100.0%
PenumbralN 18 24.7%
PartialP 29 39.7%
TotalT 26 35.6%

The 73 lunar eclipses of Saros 51 occur in the order of 11N 19P 26T 10P 7N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 51
Eclipse Type Symbol Number
Penumbral N 11
Partial P 19
Total T 26
Partial P 10
Penumbral N 7

The longest and shortest eclipses of Saros 51 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 51
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse -0456 Jul 0601h39m48s -
Shortest Total Lunar Eclipse -0113 Jan 2900h21m53s -
Longest Partial Lunar Eclipse -0582 Apr 2203h09m33s -
Shortest Partial Lunar Eclipse -0907 Oct 0900h41m28s -
Longest Penumbral Lunar Eclipse -0925 Sep 2904h35m13s -
Shortest Penumbral Lunar Eclipse -1105 Jun 1300h20m41s -
Largest Partial Lunar Eclipse -0095 Feb 08 - 0.98002
Smallest Partial Lunar Eclipse -0907 Oct 09 - 0.03111

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.