Saros 90

Catalog of Lunar Eclipses of Saros 90

Fred Espenak

Introduction

A lunar eclipse occurs whenever the Moon passes through Earth's shadow. At least two lunar eclipses and as many as five occur every year.

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 15 centuries and contains about 70 to 80 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 90

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 90 . 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 90
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
1-34 0150-Jun-2719:18:21 9061 223 -22876 Nb t- 1.5620 0.0230-1.0384 46.7 - -
2-33 0168-Jul-0801:47:14 8890 218 -22653 N t- 1.4835 0.1687-0.8960125.2 - -
3-32 0186-Jul-1908:21:49 8719 213 -22430 N t- 1.4090 0.3071-0.7612167.2 - -
4-31 0204-Jul-2915:00:11 8549 209 -22207 N t- 1.3373 0.4407-0.6315198.3 - -
5-30 0222-Aug-0921:46:02 8378 204 -21984 N t- 1.2715 0.5635-0.5128222.1 - -
6-29 0240-Aug-2004:37:35 8206 200 -21761 N t- 1.2101 0.6783-0.4022241.5 - -
7-28 0258-Aug-3111:39:16 8034 195 -21538 N t- 1.1566 0.7785-0.3062256.6 - -
8-27 0276-Sep-1018:48:34 7862 191 -21315 N t- 1.1090 0.8680-0.2208269.0 - -
9-26 0294-Sep-2202:07:14 7689 186 -21092 N t- 1.0686 0.9439-0.1487278.7 - -
10-25 0312-Oct-0209:34:25 7514 182 -20869 Nx t- 1.0350 1.0075-0.0887286.4 - -
11-24 0330-Oct-1317:11:32 7340 177 -20646 Nx t- 1.0095 1.0558-0.0435291.9 - -
12-23 0348-Oct-2400:55:49 7164 173 -20423 Nx t- 0.9892 1.0943-0.0075296.2 - -
13-22 0366-Nov-0408:46:55 6987 169 -20200 P t- 0.9742 1.1228 0.0190299.2 34.1 -
14-21 0384-Nov-1416:43:13 6810 165 -19977 P t- 0.9631 1.1438 0.0389301.3 48.5 -
15-20 0402-Nov-2600:44:23 6632 161 -19754 P t- 0.9557 1.1576 0.0522302.5 56.1 -
16-19 0420-Dec-0608:46:14 6454 157 -19531 P t- 0.9488 1.1701 0.0651303.5 62.5 -
17-18 0438-Dec-1716:49:41 6276 153 -19308 P t- 0.9429 1.1804 0.0765304.2 67.6 -
18-17 0456-Dec-2800:50:29 6098 149 -19085 P t- 0.9346 1.1945 0.0927305.1 74.2 -
19-16 0475-Jan-0808:49:19 5920 145 -18862 P t- 0.9244 1.2119 0.1129306.2 81.5 -
20-15 0493-Jan-1816:41:20 5744 141 -18639 P t- 0.9084 1.2395 0.1439308.1 91.5 -
21-14 0511-Jan-3000:29:25 5567 137 -18416 P t- 0.8887 1.2734 0.1820310.3102.2 -
22-13 0529-Feb-0908:08:58 5391 133 -18193 P t- 0.8622 1.3198 0.2329313.5114.6 -
23-12 0547-Feb-2015:41:31 5216 130 -17970 P t- 0.8292 1.3778 0.2961317.2127.8 -
24-11 0565-Mar-0223:04:49 5042 126 -17747 P t- 0.7880 1.4506 0.3742321.8141.7 -
25-10 0583-Mar-1406:21:30 4870 122 -17524 P t- 0.7408 1.5346 0.4637326.6155.3 -
26 -9 0601-Mar-2413:29:47 4699 119 -17301 P t- 0.6859 1.6324 0.5670331.8168.6 -
27 -8 0619-Apr-0420:30:38 4529 115 -17078 P t- 0.6242 1.7429 0.6831336.9181.1 -
28 -7 0637-Apr-1503:25:32 4360 112 -16855 P t- 0.5566 1.8643 0.8098341.8192.5 -
29 -6 0655-Apr-2610:15:15 4194 109 -16632 P t- 0.4835 1.9958 0.9464346.2202.5 -
30 -5 0673-May-0617:00:58 4029 105 -16409 T t- 0.4062 2.1351 1.0906350.0211.0 47.6
31 -4 0691-May-1723:43:45 3865 102 -16186 T t- 0.3255 2.2809 1.2408352.9217.9 73.7
32 -3 0709-May-2806:25:53 3704 99 -15963 T+ p- 0.2432 2.4300 1.3940354.9223.0 88.9
33 -2 0727-Jun-0813:08:20 3546 95 -15740 T+ pp 0.1599 2.5809 1.5484355.8226.3 98.2
34 -1 0745-Jun-1819:51:28 3390 92 -15517 T+ pp 0.0763 2.7328 1.7035355.8227.9103.1
35 0 0763-Jun-3002:38:33 3236 89 -15294 T- pp -0.0051 2.8622 1.8354354.7227.9104.3
36 1 0781-Jul-1009:29:41 3086 86 -15071 T- pp -0.0841 2.7161 1.6914352.8226.4102.4
37 2 0799-Jul-2116:27:45 2938 83 -14848 T- pp -0.1583 2.5791 1.5561350.2223.7 97.5
38 3 0817-Jul-3123:31:36 2794 80 -14625 T- pp -0.2287 2.4493 1.4276346.9219.9 89.9
39 4 0835-Aug-1206:45:07 2653 78 -14402 T -p -0.2921 2.3325 1.3116343.2215.3 80.0
40 5 0853-Aug-2214:06:44 2517 75 -14179 T -p -0.3499 2.2262 1.2059339.3210.3 67.2
Catalog of Lunar Eclipses of Saros 90
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 6 0871-Sep-0221:38:22 2384 72 -13956 T -p -0.4002 2.1338 1.1138335.4205.2 51.3
42 7 0889-Sep-1305:19:16 2254 69 -13733 T -p -0.4437 2.0538 1.0340331.6200.1 28.7
43 8 0907-Sep-2413:11:05 2130 67 -13510 P -a -0.4792 1.9886 0.9689328.1195.4 -
44 9 0925-Oct-0421:12:30 2009 64 -13287 P -a -0.5078 1.9362 0.9166325.0191.2 -
45 10 0943-Oct-1605:22:30 1893 61 -13064 P -a -0.5302 1.8949 0.8757322.2187.7 -
46 11 0961-Oct-2613:41:43 1781 59 -12841 P -a -0.5457 1.8662 0.8475319.9185.0 -
47 12 0979-Nov-0622:08:07 1674 56 -12618 P -a -0.5556 1.8474 0.8297318.1183.1 -
48 13 0997-Nov-1706:41:00 1572 54 -12395 P -a -0.5613 1.8363 0.8199316.6181.9 -
49 14 1015-Nov-2815:16:56 1474 52 -12172 P -a -0.5651 1.8285 0.8140315.2180.9 -
50 15 1033-Dec-0823:57:04 1380 49 -11949 P -a -0.5660 1.8257 0.8134314.0180.4 -
51 16 1051-Dec-2008:37:41 1292 47 -11726 P -a -0.5669 1.8225 0.8131312.8179.9 -
52 17 1069-Dec-3017:18:15 1207 45 -11503 P -a -0.5684 1.8180 0.8120311.5179.4 -
53 18 1088-Jan-1101:55:57 1128 43 -11280 P -a -0.5727 1.8082 0.8061310.0178.5 -
54 19 1106-Jan-2110:31:08 1053 41 -11057 P -a -0.5798 1.7930 0.7952308.2177.2 -
55 20 1124-Feb-0119:00:44 982 39 -10834 P -a -0.5920 1.7682 0.7752305.9175.1 -
56 21 1142-Feb-1203:24:52 915 37 -10611 P -a -0.6093 1.7340 0.7460303.1172.3 -
57 22 1160-Feb-2311:42:21 852 35 -10388 P -a -0.6327 1.6885 0.7056299.7168.3 -
58 23 1178-Mar-0519:53:42 794 33 -10165 P -a -0.6616 1.6329 0.6552295.8163.2 -
59 24 1196-Mar-1603:56:35 739 31 -9942 P -a -0.6982 1.5629 0.5905290.8156.3 -
60 25 1214-Mar-2711:53:26 687 29 -9719 P -a -0.7406 1.4828 0.5153285.1147.4 -
61 26 1232-Apr-0619:42:39 639 28 -9496 P -a -0.7898 1.3900 0.4274278.2135.8 -
62 27 1250-Apr-1803:27:05 594 26 -9273 P -a -0.8433 1.2896 0.3313270.2121.1 -
63 28 1268-Apr-2811:03:43 552 24 -9050 P -a -0.9038 1.1766 0.2224260.7100.6 -
64 29 1286-May-0918:38:02 513 23 -8827 P -a -0.9666 1.0597 0.1089250.0 71.4 -
65 30 1304-May-2002:06:58 476 21 -8604 N -a -1.0344 0.9336-0.0142237.4 - -
66 31 1322-May-3109:35:15 442 20 -8381 N -a -1.1029 0.8069-0.1386223.2 - -
67 32 1340-Jun-1017:00:14 410 20 -8158 N -a -1.1743 0.6750-0.2688206.5 - -
68 33 1358-Jun-2200:27:19 380 20 -7935 N -a -1.2442 0.5462-0.3965187.9 - -
69 34 1376-Jul-0207:54:02 351 20 -7712 N -a -1.3147 0.4167-0.5257166.1 - -
70 35 1394-Jul-1315:23:49 325 20 -7489 N -a -1.3829 0.2917-0.6510140.5 - -
71 36 1412-Jul-2322:56:30 299 20 -7266 N -a -1.4488 0.1712-0.7724108.8 - -
72 37 1430-Aug-0406:34:42 275 20 -7043 Ne -a -1.5105 0.0587-0.8863 64.4 - -

Statistics for Lunar Eclipses of Saros 90

Lunar eclipses of Saros 90 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 0150 Jun 27. The series will end with a penumbral eclipse near the southern edge of the penumbra on 1430 Aug 04. The total duration of Saros series 90 is 1280.14 years.

Summary of Saros 90
First Eclipse 0150 Jun 27
Last Eclipse 1430 Aug 04
Series Duration 1280.14 Years
No. of Eclipses 72
Sequence 12N 17P 13T 22P 8N

Saros 90 is composed of 72 lunar eclipses as follows:

Lunar Eclipses of Saros 90
Eclipse Type Symbol Number Percent
All Eclipses - 72100.0%
PenumbralN 20 27.8%
PartialP 39 54.2%
TotalT 13 18.1%

The 72 lunar eclipses of Saros 90 occur in the order of 12N 17P 13T 22P 8N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 90
Eclipse Type Symbol Number
Penumbral N 12
Partial P 17
Total T 13
Partial P 22
Penumbral N 8

The longest and shortest eclipses of Saros 90 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 90
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse 0763 Jun 3001h44m20s -
Shortest Total Lunar Eclipse 0889 Sep 1300h28m40s -
Longest Partial Lunar Eclipse 0655 Apr 2603h22m32s -
Shortest Partial Lunar Eclipse 0366 Nov 0400h34m04s -
Longest Penumbral Lunar Eclipse 0348 Oct 2404h56m11s -
Shortest Penumbral Lunar Eclipse 0150 Jun 2700h46m41s -
Largest Partial Lunar Eclipse 0907 Sep 24 - 0.96894
Smallest Partial Lunar Eclipse 0366 Nov 04 - 0.01904

Links to Additional Lunar Eclipse Predictions

  • Home - home page of EclipseWise with predictions for both Solar and lunar eclipses

Eclipse Publications

by Fred Espenak

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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.