Saros 87

Catalog of Lunar Eclipses of Saros 87

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 87

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 87 . 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 87
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
1-33 0027-Aug-0605:04:15 10247 257 -24396 N t- -1.5181 0.1082-0.9627100.9 - -
2-32 0045-Aug-1611:56:52 10069 252 -24173 N t- -1.4589 0.2193-0.8564142.6 - -
3-31 0063-Aug-2718:58:01 9893 247 -23950 N t- -1.4063 0.3183-0.7621170.7 - -
4-30 0081-Sep-0702:08:00 9719 242 -23727 N t- -1.3608 0.4041-0.6810191.3 - -
5-29 0099-Sep-1809:25:16 9545 237 -23504 N t- -1.3210 0.4793-0.6103207.3 - -
6-28 0117-Sep-2816:52:47 9373 232 -23281 N t- -1.2894 0.5396-0.5543219.1 - -
7-27 0135-Oct-1000:27:54 9201 227 -23058 N t- -1.2636 0.5887-0.5090228.1 - -
8-26 0153-Oct-2008:12:00 9030 222 -22835 N t- -1.2449 0.6247-0.4762234.5 - -
9-25 0171-Oct-3116:01:06 8859 217 -22612 N t- -1.2301 0.6532-0.4503239.4 - -
10-24 0189-Nov-1023:57:31 8688 213 -22389 N t- -1.2210 0.6708-0.4347242.3 - -
11-23 0207-Nov-2207:56:28 8517 208 -22166 N t- -1.2138 0.6847-0.4220244.6 - -
12-22 0225-Dec-0215:58:11 8346 203 -21943 N t- -1.2086 0.6943-0.4127246.0 - -
13-21 0243-Dec-1323:59:25 8175 199 -21720 N t- -1.2028 0.7047-0.4018247.5 - -
14-20 0261-Dec-2408:00:18 8003 194 -21497 N t- -1.1964 0.7159-0.3892249.0 - -
15-19 0280-Jan-0415:56:50 7830 190 -21274 N t- -1.1862 0.7335-0.3696251.4 - -
16-18 0298-Jan-1423:49:04 7657 185 -21051 N t- -1.1722 0.7578-0.3424254.5 - -
17-17 0316-Jan-2607:35:00 7482 181 -20828 N t- -1.1526 0.7920-0.3047258.9 - -
18-16 0334-Feb-0515:14:55 7307 177 -20605 N t- -1.1275 0.8360-0.2567264.3 - -
19-15 0352-Feb-1622:45:02 7131 172 -20382 N t- -1.0940 0.8952-0.1930271.2 - -
20-14 0370-Feb-2706:08:26 6955 168 -20159 N t- -1.0546 0.9651-0.1183278.9 - -
21-13 0388-Mar-0913:22:07 6777 164 -19936 Nx t- -1.0065 1.0507-0.0276287.6 - -
22-12 0406-Mar-2020:29:44 6600 160 -19713 P t- -0.9527 1.1469 0.0737296.5 65.9 -
23-11 0424-Mar-3103:27:10 6421 156 -19490 P t- -0.8898 1.2597 0.1916306.0104.3 -
24-10 0442-Apr-1110:20:08 6243 152 -19267 P t- -0.8224 1.3808 0.3177315.0131.6 -
25 -9 0460-Apr-2117:05:05 6065 148 -19044 P t- -0.7479 1.5151 0.4567323.8154.1 -
26 -8 0478-May-0223:47:00 5888 144 -18821 P t- -0.6700 1.6558 0.6020331.6172.5 -
27 -7 0496-May-1306:23:49 5712 140 -18598 P t- -0.5868 1.8062 0.7566338.7187.9 -
28 -6 0514-May-2413:00:44 5535 136 -18375 P t- -0.5028 1.9584 0.9127344.6200.3 -
29 -5 0532-Jun-0319:36:16 5359 133 -18152 T t- -0.4170 2.1143 1.0719349.3210.1 42.7
30 -4 0550-Jun-1502:13:39 5184 129 -17929 T t- -0.3315 2.2696 1.2301352.8217.6 72.4
31 -3 0568-Jun-2508:53:34 5010 125 -17706 T- p- -0.2474 2.4228 1.3857355.1222.8 88.3
32 -2 0586-Jul-0615:38:12 4838 122 -17483 T- pp -0.1663 2.5705 1.5355356.2226.1 97.6
33 -1 0604-Jul-1622:28:39 4667 118 -17260 T- pp -0.0888 2.7120 1.6784356.4227.7102.5
34 0 0622-Jul-2805:25:36 4498 115 -17037 T- pp -0.0158 2.8453 1.8130355.7227.9104.1
35 1 0640-Aug-0712:31:37 4330 111 -16814 T+ pp 0.0506 2.7810 1.7494354.3226.9103.2
36 2 0658-Aug-1819:46:10 4163 108 -16591 T+ pp 0.1107 2.6705 1.6394352.4225.1100.5
37 3 0676-Aug-2903:10:42 3998 105 -16368 T+ pp 0.1636 2.5734 1.5426350.1222.7 96.5
38 4 0694-Sep-0910:45:01 3836 101 -16145 T+ pp 0.2092 2.4896 1.4589347.8220.1 91.6
39 5 0712-Sep-1918:30:11 3675 98 -15922 T+ -p 0.2469 2.4204 1.3897345.4217.4 86.5
40 6 0730-Oct-0102:25:00 3517 95 -15699 T -p 0.2771 2.3649 1.3343343.2214.9 81.6
Catalog of Lunar Eclipses of Saros 87
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 7 0748-Oct-1110:28:43 3361 92 -15476 T -p 0.3009 2.3212 1.2909341.1212.7 77.1
42 8 0766-Oct-2218:41:31 3208 89 -15253 T -p 0.3178 2.2898 1.2601339.2210.8 73.4
43 9 0784-Nov-0203:02:21 3058 86 -15030 T -p 0.3292 2.2686 1.2397337.6209.4 70.8
44 10 0802-Nov-1311:29:22 2911 83 -14807 T -p 0.3360 2.2553 1.2279336.1208.3 69.1
45 11 0820-Nov-2320:01:16 2768 80 -14584 T -p 0.3396 2.2479 1.2222334.8207.5 68.2
46 12 0838-Dec-0504:36:29 2628 77 -14361 T -p 0.3412 2.2437 1.2204333.5206.8 67.8
47 13 0856-Dec-1513:14:09 2492 74 -14138 T -p 0.3416 2.2414 1.2210332.2206.3 67.8
48 14 0874-Dec-2621:50:38 2359 71 -13915 T -p 0.3439 2.2355 1.2186330.8205.7 67.3
49 15 0893-Jan-0606:26:44 2231 69 -13692 T -p 0.3473 2.2272 1.2143329.3205.0 66.6
50 16 0911-Jan-1714:58:39 2107 66 -13469 T -p 0.3551 2.2107 1.2024327.6204.0 64.9
51 17 0929-Jan-2723:27:20 1987 63 -13246 T -p 0.3661 2.1880 1.1845325.6202.7 62.2
52 18 0947-Feb-0807:48:39 1872 61 -13023 T -p 0.3841 2.1522 1.1540323.3200.8 57.3
53 19 0965-Feb-1816:05:28 1761 58 -12800 T -p 0.4066 2.1082 1.1156320.6198.5 50.2
54 20 0983-Mar-0200:14:11 1655 56 -12577 T -p 0.4366 2.0503 1.0633317.4195.2 37.6
55 21 1001-Mar-1208:16:11 1553 54 -12354 P -a 0.4728 1.9811 0.9996313.7191.1 -
56 22 1019-Mar-2316:10:16 1456 51 -12131 P -a 0.5161 1.8989 0.9230309.3185.8 -
57 23 1037-Apr-0223:58:24 1364 49 -11908 P -a 0.5648 1.8068 0.8361304.2179.2 -
58 24 1055-Apr-1407:39:59 1276 47 -11685 P -a 0.6197 1.7036 0.7379298.2170.8 -
59 25 1073-Apr-2415:15:38 1192 45 -11462 P -a 0.6800 1.5907 0.6296291.3160.2 -
60 26 1091-May-0522:46:53 1114 42 -11239 P -a 0.7444 1.4705 0.5134283.2147.1 -
61 27 1109-May-1606:14:42 1039 40 -11016 P -a 0.8119 1.3449 0.3913274.1130.5 -
62 28 1127-May-2713:39:47 969 38 -10793 P -a 0.8822 1.2144 0.2638263.7109.0 -
63 29 1145-Jun-0621:03:43 903 36 -10570 P -a 0.9538 1.0818 0.1335252.0 78.8 -
64 30 1163-Jun-1804:27:53 841 34 -10347 P -a 1.0257 0.9491 0.0024238.9 10.9 -
65 31 1181-Jun-2811:53:55 783 33 -10124 N -a 1.0961 0.8194-0.1262224.7 - -
66 32 1199-Jul-0919:21:27 729 31 -9901 N -a 1.1656 0.6916-0.2537208.8 - -
67 33 1217-Jul-2002:53:27 678 29 -9678 N -a 1.2316 0.5707-0.3749191.8 - -
68 34 1235-Jul-3110:29:14 631 27 -9455 N -a 1.2947 0.4554-0.4910173.1 - -
69 35 1253-Aug-1018:11:48 586 26 -9232 N -a 1.3524 0.3502-0.5975153.3 - -
70 36 1271-Aug-2201:59:04 545 24 -9009 N -a 1.4063 0.2522-0.6974131.2 - -
71 37 1289-Sep-0109:55:07 506 22 -8786 N -a 1.4532 0.1674-0.7844107.7 - -
72 38 1307-Sep-1217:57:22 470 21 -8563 N -a 1.4952 0.0916-0.8628 80.3 - -
73 39 1325-Sep-2302:08:31 436 20 -8340 Ne -a 1.5302 0.0287-0.9284 45.2 - -

Statistics for Lunar Eclipses of Saros 87

Lunar eclipses of Saros 87 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 0027 Aug 06. The series will end with a penumbral eclipse near the northern edge of the penumbra on 1325 Sep 23. The total duration of Saros series 87 is 1298.17 years.

Summary of Saros 87
First Eclipse 0027 Aug 06
Last Eclipse 1325 Sep 23
Series Duration 1298.17 Years
No. of Eclipses 73
Sequence 21N 7P 26T 10P 9N

Saros 87 is composed of 73 lunar eclipses as follows:

Lunar Eclipses of Saros 87
Eclipse Type Symbol Number Percent
All Eclipses - 73100.0%
PenumbralN 30 41.1%
PartialP 17 23.3%
TotalT 26 35.6%

The 73 lunar eclipses of Saros 87 occur in the order of 21N 7P 26T 10P 9N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 87
Eclipse Type Symbol Number
Penumbral N 21
Partial P 7
Total T 26
Partial P 10
Penumbral N 9

The longest and shortest eclipses of Saros 87 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 87
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse 0622 Jul 2801h44m07s -
Shortest Total Lunar Eclipse 0983 Mar 0200h37m39s -
Longest Partial Lunar Eclipse 0514 May 2403h20m17s -
Shortest Partial Lunar Eclipse 1163 Jun 1800h10m51s -
Longest Penumbral Lunar Eclipse 0388 Mar 0904h47m36s -
Shortest Penumbral Lunar Eclipse 1325 Sep 2300h45m14s -
Largest Partial Lunar Eclipse 1001 Mar 12 - 0.99964
Smallest Partial Lunar Eclipse 1163 Jun 18 - 0.00245

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.