Saros 85

Catalog of Lunar Eclipses of Saros 85

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 85

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 85 . 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 85
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
1-37 -0103-Aug-0210:16:00 11597 296 -26004 Nb a- -1.5381 0.0434-0.9717 60.2 - -
2-36 -0085-Aug-1317:39:51 11401 290 -25781 N a- -1.4779 0.1536-0.8609111.7 - -
3-35 -0067-Aug-2401:12:18 11209 285 -25558 N a- -1.4237 0.2529-0.7612141.5 - -
4-34 -0049-Sep-0408:56:07 11019 279 -25335 N a- -1.3776 0.3374-0.6766161.6 - -
5-33 -0031-Sep-1416:49:13 10832 274 -25112 N a- -1.3384 0.4093-0.6046176.3 - -
6-32 -0013-Sep-2600:52:03 10647 269 -24889 N a- -1.3063 0.4681-0.5456186.9 - -
7-31 0005-Oct-0609:03:50 10465 263 -24666 N a- -1.2807 0.5149-0.4986194.5 - -
8-30 0023-Oct-1717:25:01 10285 258 -24443 N a- -1.2618 0.5493-0.4638199.6 - -
9-29 0041-Oct-2801:52:56 10107 253 -24220 N a- -1.2481 0.5741-0.4381203.0 - -
10-28 0059-Nov-0810:27:05 9930 248 -23997 N a- -1.2386 0.5909-0.4202204.9 - -
11-27 0077-Nov-1819:05:41 9755 243 -23774 N a- -1.2322 0.6018-0.4075206.0 - -
12-26 0095-Nov-3003:48:29 9582 238 -23551 N a- -1.2284 0.6077-0.3994206.2 - -
13-25 0113-Dec-1012:31:14 9409 233 -23328 N a- -1.2240 0.6144-0.3900206.5 - -
14-24 0131-Dec-2121:14:37 9237 228 -23105 N a- -1.2196 0.6208-0.3803206.8 - -
15-23 0150-Jan-0105:54:48 9066 223 -22882 N a- -1.2120 0.6329-0.3645207.9 - -
16-22 0168-Jan-1214:32:57 8895 218 -22659 N a- -1.2024 0.6484-0.3448209.4 - -
17-21 0186-Jan-2223:04:08 8724 214 -22436 N a- -1.1865 0.6752-0.3133212.4 - -
18-20 0204-Feb-0307:31:22 8553 209 -22213 N a- -1.1670 0.7086-0.2751216.2 - -
19-19 0222-Feb-1315:50:17 8382 204 -21990 N a- -1.1402 0.7552-0.2235221.4 - -
20-18 0240-Feb-2500:02:55 8211 200 -21767 N a- -1.1080 0.8116-0.1619227.5 - -
21-17 0258-Mar-0708:06:31 8039 195 -21544 N a- -1.0680 0.8825-0.0861234.7 - -
22-16 0276-Mar-1716:04:25 7866 191 -21321 N a- -1.0230 0.9627-0.0010242.4 - -
23-15 0294-Mar-2823:54:25 7693 186 -21098 P a- -0.9708 1.0562 0.0971250.6 67.6 -
24-14 0312-Apr-0807:38:12 7519 182 -20875 P a- -0.9130 1.1600 0.2052259.0 96.7 -
25-13 0330-Apr-1915:16:03 7344 178 -20652 P a- -0.8500 1.2737 0.3226267.3119.1 -
26-12 0348-Apr-2922:49:52 7169 173 -20429 P a- -0.7832 1.3946 0.4468275.2137.4 -
27-11 0366-May-1106:19:24 6992 169 -20206 P a- -0.7124 1.5232 0.5781282.7153.0 -
28-10 0384-May-2113:46:21 6815 165 -19983 P a- -0.6388 1.6571 0.7140289.6166.2 -
29 -9 0402-Jun-0121:12:18 6637 161 -19760 P a- -0.5642 1.7934 0.8517295.7177.2 -
30 -8 0420-Jun-1204:38:24 6459 157 -19537 P a- -0.4895 1.9300 0.9890301.0186.3 -
31 -7 0438-Jun-2312:04:50 6281 153 -19314 T a- -0.4150 2.0666 1.1257305.6193.7 51.1
32 -6 0456-Jul-0319:34:12 6103 149 -19091 T p- -0.3428 2.1995 1.2580309.3199.5 70.1
33 -5 0474-Jul-1503:06:34 5925 145 -18868 T p- -0.2732 2.3279 1.3851312.2203.9 82.0
34 -4 0492-Jul-2510:44:06 5749 141 -18645 T- p- -0.2079 2.4485 1.5039314.5207.1 89.6
35 -3 0510-Aug-0518:25:27 5572 137 -18422 T- p- -0.1461 2.5631 1.6162316.2209.2 94.5
36 -2 0528-Aug-1602:14:30 5396 133 -18199 T- pp -0.0910 2.6656 1.7158317.4210.5 97.3
37 -1 0546-Aug-2710:09:28 5221 130 -17976 T- pp -0.0412 2.7587 1.8057318.3211.1 98.6
38 0 0564-Sep-0618:12:46 5047 126 -17753 T+ pp 0.0016 2.8330 1.8766318.9211.3 98.9
39 1 0582-Sep-1802:22:56 4874 122 -17530 T+ pp 0.0384 2.7673 1.8072319.4211.2 98.5
40 2 0600-Sep-2810:41:54 4703 119 -17307 T+ -p 0.0678 2.7154 1.7516319.8211.0 97.7
Catalog of Lunar Eclipses of Saros 85
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 3 0618-Oct-0919:07:46 4533 115 -17084 T+ -p 0.0910 2.6746 1.7070320.2210.7 96.8
42 4 0636-Oct-2003:40:14 4365 112 -16861 T+ -p 0.1087 2.6440 1.6728320.6210.4 96.0
43 5 0654-Oct-3112:19:13 4198 109 -16638 T+ -p 0.1207 2.6236 1.6490321.1210.3 95.3
44 6 0672-Nov-1021:03:16 4033 105 -16415 T+ -p 0.1287 2.6104 1.6329321.7210.3 94.8
45 7 0690-Nov-2205:51:09 3870 102 -16192 T+ -p 0.1330 2.6040 1.6238322.4210.4 94.6
46 8 0708-Dec-0214:40:16 3709 99 -15969 T+ -p 0.1362 2.5993 1.6169323.0210.5 94.4
47 9 0726-Dec-1323:30:52 3550 96 -15746 T+ -p 0.1376 2.5974 1.6133323.7210.8 94.4
48 10 0744-Dec-2408:19:58 3394 92 -15523 T+ -p 0.1405 2.5929 1.6075324.3211.0 94.4
49 11 0763-Jan-0417:06:17 3240 89 -15300 T+ -p 0.1450 2.5850 1.5988324.9211.3 94.2
50 12 0781-Jan-1501:47:48 3090 86 -15077 T+ -p 0.1532 2.5700 1.5834325.5211.4 93.8
51 13 0799-Jan-2610:23:58 2942 83 -14854 T+ -p 0.1655 2.5476 1.5609325.9211.5 93.1
52 14 0817-Feb-0518:53:10 2798 80 -14631 T+ -p 0.1831 2.5151 1.5286326.2211.3 91.8
53 15 0835-Feb-1703:14:11 2657 78 -14408 T+ -p 0.2072 2.4708 1.4847326.4210.9 89.7
54 16 0853-Feb-2711:26:44 2520 75 -14185 T+ -p 0.2379 2.4143 1.4286326.2209.9 86.5
55 17 0871-Mar-1019:30:37 2387 72 -13962 T -p 0.2752 2.3457 1.3602325.7208.5 81.6
56 18 0889-Mar-2103:24:44 2258 69 -13739 T -p 0.3201 2.2631 1.2779324.8206.1 74.0
57 19 0907-Apr-0111:10:15 2133 67 -13516 T -a 0.3717 2.1685 1.1832323.2202.7 62.2
58 20 0925-Apr-1118:46:50 2012 64 -13293 T -a 0.4300 2.0618 1.0762320.9197.9 41.6
59 21 0943-Apr-2302:16:21 1896 61 -13070 P -a 0.4935 1.9455 0.9591317.7191.5 -
60 22 0961-May-0309:36:52 1784 59 -12847 P -a 0.5637 1.8174 0.8299313.4182.9 -
61 23 0979-May-1416:52:22 1677 57 -12624 P -a 0.6369 1.6840 0.6947307.9171.7 -
62 24 0997-May-2500:01:15 1574 54 -12401 P -a 0.7145 1.5427 0.5512301.1157.1 -
63 25 1015-Jun-0507:07:24 1476 52 -12178 P -a 0.7935 1.3993 0.4049292.8138.2 -
64 26 1033-Jun-1514:08:36 1383 49 -11955 P -a 0.8753 1.2508 0.2531282.8112.1 -
65 27 1051-Jun-2621:10:26 1294 47 -11732 P -a 0.9553 1.1060 0.1043271.4 73.8 -
66 28 1069-Jul-0704:10:38 1210 45 -11509 N -a 1.0352 0.9617-0.0444258.2 - -
67 29 1087-Jul-1811:13:08 1130 43 -11286 N -a 1.1119 0.8235-0.1876243.5 - -
68 30 1105-Jul-2818:17:08 1054 41 -11063 N -h 1.1862 0.6898-0.3267226.9 - -
69 31 1123-Aug-0901:26:13 983 39 -10840 N -h 1.2552 0.5661-0.4562209.1 - -
70 32 1141-Aug-1908:39:35 917 37 -10617 N -h 1.3195 0.4512-0.5772189.6 - -
71 33 1159-Aug-3015:58:43 854 35 -10394 N -h 1.3780 0.3470-0.6876168.7 - -
72 34 1177-Sep-0923:24:34 795 33 -10171 N -h 1.4299 0.2550-0.7860146.5 - -
73 35 1195-Sep-2106:57:59 740 31 -9948 N -h 1.4749 0.1756-0.8718123.0 - -
74 36 1213-Oct-0114:38:25 688 29 -9725 N -h 1.5135 0.1081-0.9455 97.5 - -
75 37 1231-Oct-1222:26:26 640 28 -9502 N -h 1.5451 0.0531-1.0066 69.0 - -
76 38 1249-Oct-2306:20:58 595 26 -9279 N -h 1.5707 0.0091-1.0563 28.7 - -

Statistics for Lunar Eclipses of Saros 85

Lunar eclipses of Saros 85 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 -0103 Aug 02. The series will end with a penumbral eclipse near the northern edge of the penumbra on 1249 Oct 23. The total duration of Saros series 85 is 1352.26 years.

Summary of Saros 85
First Eclipse -0103 Aug 02
Last Eclipse 1249 Oct 23
Series Duration 1352.26 Years
No. of Eclipses 76
Sequence 22N 8P 28T 7P 11N

Saros 85 is composed of 76 lunar eclipses as follows:

Lunar Eclipses of Saros 85
Eclipse Type Symbol Number Percent
All Eclipses - 76100.0%
PenumbralN 33 43.4%
PartialP 15 19.7%
TotalT 28 36.8%

The 76 lunar eclipses of Saros 85 occur in the order of 22N 8P 28T 7P 11N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 85
Eclipse Type Symbol Number
Penumbral N 22
Partial P 8
Total T 28
Partial P 7
Penumbral N 11

The longest and shortest eclipses of Saros 85 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 85
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse 0564 Sep 0601h38m53s -
Shortest Total Lunar Eclipse 0925 Apr 1100h41m34s -
Longest Partial Lunar Eclipse 0943 Apr 2303h11m33s -
Shortest Partial Lunar Eclipse 0294 Mar 2801h07m38s -
Longest Penumbral Lunar Eclipse 1069 Jul 0704h18m12s -
Shortest Penumbral Lunar Eclipse 1249 Oct 2300h28m42s -
Largest Partial Lunar Eclipse 0420 Jun 12 - 0.98904
Smallest Partial Lunar Eclipse 0294 Mar 28 - 0.09708

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.