Saros 27

Catalog of Lunar Eclipses of Saros 27

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 27

The table below lists the concise characteristics of every lunar eclipse belonging to Saros 27 . 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 27
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 -1926-Jul-2821:01:21 44632 3425 -48552 N h- -1.5165 0.0908-0.9396 88.0 - -
2-36 -1908-Aug-0804:25:46 44203 3352 -48329 N h- -1.4627 0.1894-0.8408125.5 - -
3-35 -1890-Aug-1912:01:59 43776 3280 -48106 N a- -1.4173 0.2727-0.7575149.0 - -
4-34 -1872-Aug-2919:47:11 43351 3209 -47883 N a- -1.3782 0.3445-0.6857165.8 - -
5-33 -1854-Sep-1003:44:31 42928 3139 -47660 N a- -1.3481 0.3996-0.6304177.1 - -
6-32 -1836-Sep-2011:50:33 42508 3069 -47437 N a- -1.3241 0.4435-0.5863185.2 - -
7-31 -1818-Oct-0120:06:21 42089 3000 -47214 N a- -1.3072 0.4742-0.5549190.3 - -
8-30 -1800-Oct-1204:29:27 41673 2932 -46991 N a- -1.2953 0.4955-0.5327193.5 - -
9-29 -1782-Oct-2312:59:51 41258 2864 -46768 N a- -1.2884 0.5074-0.5193194.9 - -
10-28 -1764-Nov-0221:34:28 40846 2797 -46545 N a- -1.2845 0.5136-0.5111195.3 - -
11-27 -1746-Nov-1406:11:51 40436 2731 -46322 N a- -1.2820 0.5168-0.5052195.2 - -
12-26 -1728-Nov-2414:50:43 40027 2665 -46099 N a- -1.2801 0.5188-0.5000194.8 - -
13-25 -1710-Dec-0523:29:20 39621 2601 -45876 N a- -1.2770 0.5225-0.4925194.7 - -
14-24 -1692-Dec-1608:04:52 39217 2536 -45653 N a- -1.2710 0.5313-0.4794195.4 - -
15-23 -1674-Dec-2716:36:29 38815 2473 -45430 N a- -1.2613 0.5467-0.4591197.2 - -
16-22 -1655-Jan-0701:02:39 38415 2410 -45207 N a- -1.2465 0.5712-0.4294200.3 - -
17-21 -1637-Jan-1809:23:21 38017 2348 -44984 N a- -1.2267 0.6048-0.3903204.6 - -
18-20 -1619-Jan-2817:35:37 37621 2287 -44761 N a- -1.1993 0.6522-0.3372210.7 - -
19-19 -1601-Feb-0901:41:41 37228 2226 -44538 N a- -1.1662 0.7100-0.2736217.7 - -
20-18 -1583-Feb-1909:39:13 36836 2166 -44315 N a- -1.1254 0.7819-0.1959225.9 - -
21-17 -1565-Mar-0217:30:17 36446 2107 -44092 N a- -1.0788 0.8646-0.1076234.7 - -
22-16 -1547-Mar-1301:13:20 36059 2049 -43869 N a- -1.0246 0.9613-0.0056244.1 - -
23-15 -1529-Mar-2408:51:09 35673 1991 -43646 P a- -0.9655 1.0672 0.1053253.4 70.8 -
24-14 -1511-Apr-0316:23:08 35290 1934 -43423 P a- -0.9008 1.1838 0.2263262.6101.8 -
25-13 -1493-Apr-1423:50:23 34909 1877 -43200 P a- -0.8314 1.3091 0.3556271.5125.1 -
26-12 -1475-Apr-2507:14:36 34529 1822 -42977 P a- -0.7589 1.4405 0.4902279.7143.6 -
27-11 -1457-May-0614:36:36 34152 1767 -42754 P a- -0.6841 1.5762 0.6287287.1158.9 -
28-10 -1439-May-1621:58:18 33777 1713 -42531 P a- -0.6083 1.7143 0.7688293.7171.5 -
29 -9 -1421-May-2805:19:11 33404 1659 -42308 P a- -0.5316 1.8544 0.9102299.5181.9 -
30 -8 -1403-Jun-0712:42:46 33033 1606 -42085 T a- -0.4568 1.9913 1.0478304.2190.2 32.3
31 -7 -1385-Jun-1820:08:17 32664 1554 -41862 T a- -0.3836 2.1258 1.1822308.2196.7 60.5
32 -6 -1367-Jun-2903:38:25 32297 1503 -41639 T p- -0.3140 2.2538 1.3095311.3201.7 75.6
33 -5 -1349-Jul-1011:12:41 31933 1453 -41416 T- p- -0.2477 2.3761 1.4305313.7205.4 85.2
34 -4 -1331-Jul-2018:54:22 31570 1403 -41193 T- p- -0.1875 2.4874 1.5399315.4207.9 91.4
35 -3 -1313-Aug-0102:42:24 31209 1354 -40970 T- p- -0.1329 2.5887 1.6390316.7209.5 95.2
36 -2 -1295-Aug-1110:38:13 30851 1305 -40747 T- p- -0.0847 2.6785 1.7261317.6210.4 97.4
37 -1 -1277-Aug-2218:42:01 30494 1258 -40524 T- pp -0.0433 2.7560 1.8006318.2210.8 98.4
38 0 -1259-Sep-0202:54:26 30140 1211 -40301 T- pp -0.0091 2.8203 1.8618318.6210.9 98.6
39 1 -1241-Sep-1311:14:53 29788 1165 -40078 T+ pp 0.0183 2.8051 1.8434319.0210.9 98.5
40 2 -1223-Sep-2319:42:55 29437 1119 -39855 T+ pp 0.0393 2.7683 1.8033319.3210.7 98.1
Catalog of Lunar Eclipses of Saros 27
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 -1205-Oct-0504:18:14 29089 1074 -39632 T+ -p 0.0539 2.7430 1.7749319.7210.6 97.7
42 4 -1187-Oct-1513:00:13 28743 1031 -39409 T+ -p 0.0630 2.7277 1.7568320.1210.5 97.4
43 5 -1169-Oct-2621:46:28 28399 987 -39186 T+ -p 0.0684 2.7191 1.7458320.5210.6 97.2
44 6 -1151-Nov-0606:37:15 28057 945 -38963 T+ -p 0.0698 2.7176 1.7421321.0210.7 97.2
45 7 -1133-Nov-1715:29:08 27717 903 -38740 T+ -p 0.0702 2.7176 1.7406321.5210.9 97.2
46 8 -1115-Nov-2800:22:23 27379 862 -38517 T+ -p 0.0689 2.7205 1.7422322.0211.1 97.3
47 9 -1097-Dec-0909:12:33 27043 822 -38294 T+ -p 0.0702 2.7186 1.7396322.5211.3 97.4
48 10 -1079-Dec-1918:01:30 26710 783 -38071 T+ -p 0.0721 2.7153 1.7360323.0211.6 97.4
49 11 -1061-Dec-3102:44:44 26378 745 -37848 T+ -p 0.0788 2.7028 1.7236323.5211.9 97.4
50 12 -1042-Jan-1011:22:52 26049 707 -37625 T+ -p 0.0893 2.6834 1.7047323.9212.1 97.2
51 13 -1024-Jan-2119:52:26 25721 670 -37402 T+ -p 0.1067 2.6512 1.6731324.2212.2 96.6
52 14 -1006-Feb-0104:15:21 25396 634 -37179 T+ -p 0.1292 2.6094 1.6322324.5212.1 95.7
53 15 -0988-Feb-1212:28:59 25072 617 -36956 T+ -p 0.1594 2.5537 1.5773324.5211.7 93.9
54 16 -0970-Feb-2220:33:31 24751 611 -36733 T+ -p 0.1966 2.4849 1.5093324.3210.8 91.0
55 17 -0952-Mar-0504:28:42 24432 604 -36510 T+ -p 0.2414 2.4025 1.4274323.8209.3 86.3
56 18 -0934-Mar-1612:15:15 24115 597 -36287 T -p 0.2926 2.3084 1.3336322.7206.9 79.1
57 19 -0916-Mar-2619:52:47 23800 590 -36064 T -a 0.3508 2.2017 1.2268321.0203.4 67.9
58 20 -0898-Apr-0703:22:08 23486 583 -35841 T -a 0.4152 2.0837 1.1082318.5198.4 48.8
59 21 -0880-Apr-1710:44:05 23176 576 -35618 P -a 0.4850 1.9562 0.9797315.1191.6 -
60 22 -0862-Apr-2818:00:29 22867 569 -35395 P -a 0.5584 1.8223 0.8442310.6182.8 -
61 23 -0844-May-0901:10:23 22560 563 -35172 P -a 0.6363 1.6805 0.7002304.9171.1 -
62 24 -0826-May-2008:17:36 22255 556 -34949 P -a 0.7153 1.5369 0.5538298.0156.3 -
63 25 -0808-May-3015:21:25 21953 549 -34726 P -a 0.7959 1.3909 0.4044289.6137.1 -
64 26 -0790-Jun-1022:25:34 21652 542 -34503 P -a 0.8753 1.2472 0.2568280.0112.0 -
65 27 -0772-Jun-2105:27:51 21353 535 -34280 P -a 0.9549 1.1035 0.1084268.8 74.6 -
66 28 -0754-Jul-0212:33:33 21057 528 -34057 N -a 1.0304 0.9674-0.0327256.6 - -
67 29 -0736-Jul-1219:40:53 20763 521 -33834 N -a 1.1033 0.8366-0.1692243.1 - -
68 30 -0718-Jul-2402:53:32 20470 515 -33611 N -a 1.1707 0.7159-0.2959228.7 - -
69 31 -0700-Aug-0310:10:09 20180 508 -33388 N -a 1.2338 0.6033-0.4148213.3 - -
70 32 -0682-Aug-1417:34:33 19892 501 -33165 N -a 1.2895 0.5043-0.5202197.9 - -
71 33 -0664-Aug-2501:05:16 19606 493 -32942 N -a 1.3388 0.4172-0.6140182.4 - -
72 34 -0646-Sep-0508:42:57 19322 486 -32719 N -a 1.3814 0.3424-0.6955167.2 - -
73 35 -0628-Sep-1516:28:14 19040 479 -32496 N -a 1.4169 0.2807-0.7638152.9 - -
74 36 -0610-Sep-2700:20:57 18760 472 -32273 N -a 1.4455 0.2313-0.8195140.0 - -
75 37 -0592-Oct-0708:20:48 18482 465 -32050 N -a 1.4674 0.1941-0.8626129.3 - -
76 38 -0574-Oct-1816:25:33 18206 458 -31827 N -a 1.4845 0.1655-0.8967120.2 - -
77 39 -0556-Oct-2900:36:15 17933 451 -31604 N -a 1.4960 0.1470-0.9201113.9 - -
78 40 -0538-Nov-0908:49:59 17661 444 -31381 N -a 1.5044 0.1336-0.9377109.1 - -
79 41 -0520-Nov-1917:05:59 17392 438 -31158 N -h 1.5102 0.1247-0.9501105.8 - -
80 42 -0502-Dec-0101:21:45 17124 431 -30935 N -h 1.5157 0.1161-0.9615102.5 - -
Catalog of Lunar Eclipses of Saros 27
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 43 -0484-Dec-1109:36:31 16807 424 -30712 N -h 1.5213 0.1068-0.9728 98.7 - -
82 44 -0466-Dec-2217:47:29 16496 418 -30489 N -h 1.5293 0.0927-0.9881 92.3 - -
83 45 -0447-Jan-0201:53:16 16194 411 -30266 N -t 1.5410 0.0717-1.0099 81.5 - -
84 46 -0429-Jan-1309:52:33 15900 405 -30043 N -t 1.5572 0.0419-1.0396 62.6 - -
85 47 -0411-Jan-2317:44:18 15613 398 -29820 Ne -t 1.5790 0.0016-1.0794 12.4 - -

Statistics for Lunar Eclipses of Saros 27

Lunar eclipses of Saros 27 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 -1926 Jul 28. The series will end with a penumbral eclipse near the northern edge of the penumbra on -0411 Jan 23. The total duration of Saros series 27 is 1514.53 years.

Summary of Saros 27
First Eclipse -1926 Jul 28
Last Eclipse -0411 Jan 23
Series Duration 1514.53 Years
No. of Eclipses 85
Sequence 22N 7P 29T 7P 20N

Saros 27 is composed of 85 lunar eclipses as follows:

Lunar Eclipses of Saros 27
Eclipse Type Symbol Number Percent
All Eclipses - 85100.0%
PenumbralN 42 49.4%
PartialP 14 16.5%
TotalT 29 34.1%

The 85 lunar eclipses of Saros 27 occur in the order of 22N 7P 29T 7P 20N which corresponds to the following.

Sequence Order of Lunar Eclipses in Saros 27
Eclipse Type Symbol Number
Penumbral N 22
Partial P 7
Total T 29
Partial P 7
Penumbral N 20

The longest and shortest eclipses of Saros 27 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Lunar Eclipses of Saros 27
Extrema Type Date Duration Magnitude
Longest Total Lunar Eclipse -1259 Sep 0201h38m38s -
Shortest Total Lunar Eclipse -1403 Jun 0700h32m18s -
Longest Partial Lunar Eclipse -0880 Apr 1703h11m38s -
Shortest Partial Lunar Eclipse -1529 Mar 2401h10m48s -
Longest Penumbral Lunar Eclipse -0754 Jul 0204h16m37s -
Shortest Penumbral Lunar Eclipse -0411 Jan 2300h12m25s -
Largest Partial Lunar Eclipse -0880 Apr 17 - 0.97974
Smallest Partial Lunar Eclipse -1529 Mar 24 - 0.10529

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.