Saros 120

Catalog of Lunar Eclipses of Saros 120

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 120

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 120 . 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 120
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
1-42 1000-Oct-1601:35:33 1555 54 -12359 N a- 1.5463 0.0277-0.9861 47.2 - -
2-41 1018-Oct-2709:53:48 1458 51 -12136 N a- 1.5342 0.0527-0.9666 65.2 - -
3-40 1036-Nov-0618:16:24 1366 49 -11913 N a- 1.5261 0.0701-0.9543 75.4 - -
4-39 1054-Nov-1802:44:22 1278 47 -11690 N a- 1.5233 0.0778-0.9513 79.7 - -
5-38 1072-Nov-2811:14:08 1194 45 -11467 N a- 1.5224 0.0814-0.9518 81.8 - -
6-37 1090-Dec-0919:45:23 1115 43 -11244 N a- 1.5235 0.0812-0.9555 82.0 - -
7-36 1108-Dec-2004:15:56 1041 40 -11021 N a- 1.5248 0.0803-0.9594 81.8 - -
8-35 1126-Dec-3112:45:15 971 38 -10798 N h- 1.5263 0.0786-0.9633 81.3 - -
9-34 1145-Jan-1021:09:32 905 36 -10575 N h- 1.5243 0.0832-0.9604 83.9 - -
10-33 1163-Jan-2205:29:11 843 35 -10352 N h- 1.5194 0.0929-0.9520 88.8 - -
11-32 1181-Feb-0113:41:14 784 33 -10129 N h- 1.5092 0.1119-0.9338 97.6 - -
12-31 1199-Feb-1221:46:42 730 31 -9906 N h- 1.4945 0.1390-0.9070108.9 - -
13-30 1217-Feb-2305:41:07 679 29 -9683 N t- 1.4721 0.1803-0.8659123.9 - -
14-29 1235-Mar-0613:27:38 632 27 -9460 N t- 1.4440 0.2318-0.8143140.3 - -
15-28 1253-Mar-1621:02:28 587 26 -9237 N t- 1.4072 0.2992-0.7467158.9 - -
16-27 1271-Mar-2804:28:42 546 24 -9014 N t- 1.3643 0.3779-0.6679177.8 - -
17-26 1289-Apr-0711:43:10 507 23 -8791 N t- 1.3126 0.4727-0.5732197.7 - -
18-25 1307-Apr-1818:50:00 471 21 -8568 N t- 1.2554 0.5777-0.4684217.0 - -
19-24 1325-Apr-2901:47:01 437 20 -8345 N t- 1.1909 0.6964-0.3502236.2 - -
20-23 1343-May-1008:36:43 405 20 -8122 N t- 1.1209 0.8252-0.2221254.6 - -
21-22 1361-May-2015:19:09 375 20 -7899 N t- 1.0454 0.9644-0.0842272.1 - -
22-21 1379-May-3121:57:12 347 20 -7676 P t- 0.9666 1.1098 0.0597288.3 58.8 -
23-20 1397-Jun-1104:31:34 321 20 -7453 P t- 0.8851 1.2603 0.2081303.1107.8 -
24-19 1415-Jun-2211:03:04 295 20 -7230 P t- 0.8016 1.4147 0.3602316.5139.0 -
25-18 1433-Jul-0217:34:54 272 20 -7007 P t- 0.7184 1.5688 0.5114328.3162.2 -
26-17 1451-Jul-1400:07:27 249 20 -6784 P t- 0.6358 1.7220 0.6614338.6180.3 -
27-16 1469-Jul-2406:42:44 228 20 -6561 P t- 0.5557 1.8707 0.8066347.4194.6 -
28-15 1487-Aug-0413:21:11 208 20 -6338 P t- 0.4784 2.0145 0.9465354.7205.8 -
29-14 1505-Aug-1420:05:57 189 20 -6115 T t- 0.4064 2.1487 1.0766360.7214.4 44.7
30-13 1523-Aug-2602:57:00 172 20 -5892 T t- 0.3396 2.2734 1.1970365.5221.0 68.9
31-12 1541-Sep-0509:54:44 156 20 -5669 T pp 0.2784 2.3878 1.3071369.4225.8 82.7
32-11 1559-Sep-1617:00:59 142 20 -5446 T+ pp 0.2244 2.4890 1.4040372.3229.3 91.3
33-10 1577-Sep-2700:16:05 130 20 -5223 T+ pp 0.1782 2.5760 1.4868374.5231.6 96.7
34 -9 1595-Oct-1807:40:05 120 20 -5000 T+ pp 0.1391 2.6497 1.5567376.1233.1100.2
35 -8 1613-Oct-2815:11:39 102 18 -4777 T+ pp 0.1064 2.7115 1.6149377.3234.1102.3
36 -7 1631-Nov-0822:51:37 76 15 -4554 T+ pp 0.0806 2.7604 1.6607378.2234.7103.5
37 -6 1649-Nov-1906:38:53 49 13 -4331 T+ pp 0.0608 2.7979 1.6956378.7235.0104.1
38 -5 1667-Nov-3014:31:25 25 10 -4108 T+ pp 0.0456 2.8269 1.7227379.1235.1104.5
39 -4 1685-Dec-1022:29:22 10 7 -3885 T+ pp 0.0346 2.8475 1.7422379.2235.1104.7
40 -3 1703-Dec-2306:29:53 8 5 -3662 T+ pp 0.0258 2.8639 1.7582379.2235.1104.7
Catalog of Lunar Eclipses of Saros 120
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 -2 1722-Jan-0214:32:52 10 4 -3439 T+ pp 0.0187 2.8767 1.7714379.0235.1104.8
42 -1 1740-Jan-1322:33:32 11 3 -3216 T+ pp 0.0096 2.8928 1.7887378.7235.0104.9
43 0 1758-Jan-2406:34:14 14 3 -2993 T+ pp 0.0004 2.9089 1.8067378.2234.9104.9
44 1 1776-Feb-0414:29:50 16 2 -2770 T- pp -0.0128 2.8846 1.7851377.5234.7104.9
45 2 1794-Feb-1422:21:16 15 1 -2547 T- pp -0.0300 2.8514 1.7553376.6234.5104.8
46 3 1812-Feb-2706:04:51 12 1 -2324 T- pp -0.0538 2.8057 1.7136375.6234.1104.3
47 4 1830-Mar-0913:42:57 7 1 -2101 T- pp -0.0824 2.7510 1.6633374.3233.5103.3
48 5 1848-Mar-1921:12:12 7 1 -1878 T- pp -0.1185 2.6823 1.5993372.6232.4101.4
49 6 1866-Mar-3104:33:35 5 0 -1655 T- pp -0.1614 2.6011 1.5232370.5230.7 98.2
50 7 1884-Apr-1011:46:34 -6 0 -1432 T- pp -0.2116 2.5065 1.4337367.8228.2 92.9
51 8 1902-Apr-2218:52:40 0 0 -1209 T- pp -0.2680 2.4003 1.3327364.4224.6 84.6
52 9 1920-May-0301:51:08 21 0 -986 T -p -0.3312 2.2818 1.2194360.2219.7 71.5
53 10 1938-May-1408:44:00 24 0 -763 T -t -0.3994 2.1540 1.0966355.0213.1 49.4
54 11 1956-May-2415:31:52 32 0 -540 P -t -0.4726 2.0174 0.9647348.6204.5 -
55 12 1974-Jun-0422:16:44 45 0 -317 P -t -0.5489 1.8752 0.8270341.2193.6 -
56 13 1992-Jun-1504:57:57 59 0 -94 P -t -0.6289 1.7264 0.6822332.3179.8 -
57 14 2010-Jun-2611:39:34 66 0 129 P -t -0.7091 1.5773 0.5368322.2162.9 -
58 15 2028-Jul-0618:20:57 73 1 352 P -t -0.7904 1.4266 0.3892310.7141.5 -
59 16 2046-Jul-1801:06:06 83 5 575 P -t -0.8692 1.2807 0.2461298.2114.6 -
60 17 2064-Jul-2807:52:48 95 9 798 P -t -0.9473 1.1361 0.1038284.4 75.7 -
61 18 2082-Aug-0814:46:42 110 14 1021 Nx -t -1.0204 1.0012-0.0293269.8 - -
62 19 2100-Aug-1921:44:59 128 20 1244 N -t -1.0906 0.8716-0.1575254.3 - -
63 20 2118-Aug-3104:51:46 148 27 1467 N -t -1.1543 0.7541-0.2739238.5 - -
64 21 2136-Sep-1012:05:08 170 35 1690 N -t -1.2134 0.6453-0.3820222.3 - -
65 22 2154-Sep-2119:29:08 196 43 1913 N -t -1.2647 0.5511-0.4758206.6 - -
66 23 2172-Oct-0203:01:43 223 52 2136 N -h -1.3098 0.4682-0.5584191.3 - -
67 24 2190-Oct-1310:43:57 254 61 2359 N -h -1.3480 0.3980-0.6284177.0 - -
68 25 2208-Oct-2418:36:04 287 71 2582 N -h -1.3789 0.3411-0.6851164.2 - -
69 26 2226-Nov-0502:38:02 322 82 2805 N -h -1.4025 0.2978-0.7282153.6 - -
70 27 2244-Nov-1510:48:55 360 92 3028 N -a -1.4201 0.2651-0.7604144.9 - -
71 28 2262-Nov-2619:06:56 401 104 3251 N -a -1.4328 0.2416-0.7832138.2 - -
72 29 2280-Dec-0703:32:38 444 116 3474 N -a -1.4403 0.2273-0.7964133.8 - -
73 30 2298-Dec-1812:03:41 490 128 3697 N -a -1.4440 0.2196-0.8025131.2 - -
74 31 2316-Dec-2920:38:45 538 141 3920 N -a -1.4453 0.2162-0.8039129.8 - -
75 32 2335-Jan-1005:15:59 589 154 4143 N -a -1.4455 0.2147-0.8029128.9 - -
76 33 2353-Jan-2013:54:27 643 168 4366 N -a -1.4454 0.2132-0.8012128.0 - -
77 34 2371-Jan-3122:31:46 699 182 4589 N -a -1.4467 0.2089-0.8019126.3 - -
78 35 2389-Feb-1107:06:04 757 197 4812 N -a -1.4511 0.1989-0.8078123.0 - -
79 36 2407-Feb-2215:37:06 819 212 5035 N -a -1.4585 0.1830-0.8192117.7 - -
80 37 2425-Mar-0500:03:12 882 228 5258 N -a -1.4702 0.1591-0.8382109.6 - -
Catalog of Lunar Eclipses of Saros 120
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
81 38 2443-Mar-1608:22:51 949 244 5481 N -a -1.4878 0.1241-0.8679 96.7 - -
82 39 2461-Mar-2616:36:08 1018 260 5704 N -a -1.5111 0.0788-0.9080 77.1 - -
83 40 2479-Apr-0700:42:34 1089 277 5927 Ne -a -1.5403 0.0223-0.9591 41.1 - -

Statistics for Lunar Eclipses of Saros 120

Lunar eclipses of Saros 120 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 1000 Oct 16. The series will end with a penumbral eclipse near the southern edge of the penumbra on 2479 Apr 07. The total duration of Saros series 120 is 1478.47 years.

Summary of Saros 120
First Eclipse 1000 Oct 16
Last Eclipse 2479 Apr 07
Series Duration 1478.47 Years
No. of Eclipses 83
Sequence 21N 7P 25T 7P 23N

Saros 120 is composed of 83 lunar eclipses as follows:

Lunar Eclipses of Saros 120
Eclipse Type Symbol Number Percent
All Eclipses - 83100.0%
PenumbralN 44 53.0%
PartialP 14 16.9%
TotalT 25 30.1%

The 83 lunar eclipses of Saros 120 occur in the order of 21N 7P 25T 7P 23N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 120
Eclipse Type Symbol Number
Penumbral N 21
Partial P 7
Total T 25
Partial P 7
Penumbral N 23

The longest and shortest eclipses of Saros 120 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 120
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse 1758 Jan 2401h44m55s -
Shortest Total Lunar Eclipse 1505 Aug 1400h44m41s -
Longest Partial Lunar Eclipse 1487 Aug 0403h25m50s -
Shortest Partial Lunar Eclipse 1379 May 3100h58m49s -
Longest Penumbral Lunar Eclipse 1361 May 2004h32m07s -
Shortest Penumbral Lunar Eclipse 2479 Apr 0700h41m07s -
Largest Partial Lunar Eclipse 1956 May 24 - 0.96473
Smallest Partial Lunar Eclipse 1379 May 31 - 0.05965

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.