Saros 73

Catalog of Solar Eclipses of Saros 73

Fred Espenak

Introduction

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

The periodicity and recurrence of solar 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 partial eclipses near one of Earth's polar regions. The series will then produce several dozen central eclipses before ending with a group of partial eclipses near the opposite pole. For more information, see Periodicity of Solar Eclipses.

Catalog of Solar Eclipses of Saros 73

The table below lists the concise characteristics of every solar eclipse belonging to Saros 73 . 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 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 Solar Eclipses.

Catalog of Solar Eclipses of Saros 73
Seq Num Rel Num Calendar Date TD of Greatest Eclipse ΔT

s
ΔT Sigma
s
Luna Num Ecl Type QLE Gamma Ecl Mag Lat

°
Long

°
Sun Alt
°
Path Width km Central Dur
1-38 -0698-Jul-2712:52:00 20132 507 -33363 Pb t- 1.4734 0.1074 68N 123W 0 - -
2-37 -0680-Aug-0620:41:47 19844 500 -33140 P t- 1.4220 0.2076 69N 107E 0 - -
3-36 -0662-Aug-1804:38:01 19558 493 -32917 P t- 1.3759 0.2969 70N 26W 0 - -
4-35 -0644-Aug-2812:42:27 19275 485 -32694 P t- 1.3367 0.3725 71N 161W 0 - -
5-34 -0626-Sep-0820:54:33 18993 478 -32471 P t- 1.3040 0.4354 71N 61E 0 - -
6-33 -0608-Sep-1905:15:11 18714 471 -32248 P t- 1.2788 0.4834 72N 79W 0 - -
7-32 -0590-Sep-3013:41:45 18437 464 -32025 P t- 1.2588 0.5212 72N 139E 0 - -
8-31 -0572-Oct-1022:16:28 18163 457 -31802 P t- 1.2460 0.5453 72N 5W 0 - -
9-30 -0554-Oct-2206:56:27 17888 451 -31579 P t- 1.2378 0.5606 71N 150W 0 - -
10-29 -0536-Nov-0115:41:59 17618 444 -31356 P t- 1.2345 0.5666 71N 64E 0 - -
11-28 -0518-Nov-1300:29:47 17350 437 -31133 P t- 1.2336 0.5681 70N 82W 0 - -
12-27 -0500-Nov-2309:20:29 17079 430 -30910 P t- 1.2354 0.5647 69N 132E 0 - -
13-26 -0482-Dec-0418:10:48 16767 424 -30687 P t- 1.2375 0.5608 68N 13W 0 - -
14-25 -0464-Dec-1502:59:45 16455 417 -30464 P t- 1.2389 0.5583 67N 158W 0 - -
15-24 -0446-Dec-2611:45:37 16150 410 -30241 P t- 1.2381 0.5597 66N 59E 0 - -
16-23 -0427-Jan-0520:27:28 15861 404 -30018 P t- 1.2344 0.5666 65N 83W 0 - -
17-22 -0409-Jan-1705:02:21 15572 397 -29795 P t- 1.2258 0.5827 64N 137E 0 - -
18-21 -0391-Jan-2713:30:12 15294 391 -29572 P t- 1.2121 0.6083 63N 0W 0 - -
19-20 -0373-Feb-0721:49:45 15025 385 -29349 P t- 1.1922 0.6453 62N 135W 0 - -
20-19 -0355-Feb-1806:01:17 14756 378 -29126 P t- 1.1663 0.6936 62N 92E 0 - -
21-18 -0337-Mar-0114:02:01 14500 372 -28903 P t- 1.1323 0.7569 61N 38W 0 - -
22-17 -0319-Mar-1121:54:31 14249 366 -28680 P t- 1.0924 0.8311 61N 166W 0 - -
23-16 -0301-Mar-2305:36:52 13998 360 -28457 P t- 1.0450 0.9192 61N 68E 0 - -
24-15 -0283-Apr-0213:11:29 13760 354 -28234 T t- 0.9919 1.0166 61N 43W 6 52800m58s
25-14 -0265-Apr-1320:36:03 13522 348 -28011 T p- 0.9312 1.0201 60N 133W 21 18701m16s
26-13 -0247-Apr-2403:55:05 13287 342 -27788 T p- 0.8666 1.0211 59N 126E 30 14301m23s
27-12 -0229-May-0511:06:30 13063 336 -27565 T p- 0.7967 1.0210 59N 27E 37 11801m25s
28-11 -0211-May-1518:13:35 12838 330 -27342 T p- 0.7239 1.0201 59N 72W 43 9901m25s
29-10 -0193-May-2701:15:58 12619 324 -27119 T p- 0.6478 1.0181 58N 170W 49 8101m20s
30 -9 -0175-Jun-0608:16:51 12407 318 -26896 T p- 0.5713 1.0156 56N 92E 55 6501m13s
31 -8 -0157-Jun-1715:16:21 12196 313 -26673 H p- 0.4945 1.0121 53N 7W 60 4801m00s
32 -7 -0139-Jun-2722:15:21 11992 307 -26450 H p- 0.4180 1.0081 49N 108W 65 3100m42s
33 -6 -0121-Jul-0905:16:37 11791 301 -26227 H n- 0.3446 1.0034 44N 150E 70 1200m19s
34 -5 -0103-Jul-1912:20:24 11590 296 -26004 A nn 0.2742 0.9982 38N 45E 74 600m11s
35 -4 -0085-Jul-3019:28:57 11396 290 -25781 A nn 0.2086 0.9926 32N 62W 78 2700m46s
36 -3 -0067-Aug-1002:41:43 11203 285 -25558 A nn 0.1476 0.9867 25N 171W 81 4701m26s
37 -2 -0049-Aug-2110:01:53 11010 279 -25335 Am nn 0.0937 0.9807 19N 77E 85 6902m10s
38 -1 -0031-Aug-3117:28:09 10824 274 -25112 A nn 0.0460 0.9745 12N 36W 87 9102m55s
39 0 -0013-Sep-1201:01:35 10637 269 -24889 A nn 0.0052 0.9685 6N 152W 90 11303m41s
40 1 0005-Sep-2208:42:04 10454 263 -24666 A nn -0.0289 0.9626 0S 91E 88 13504m25s
Catalog of Solar Eclipses of Saros 73
Seq Num Rel Num Calendar Date TD of Greatest Eclipse ΔT

s
ΔT Sigma
s
Luna Num Ecl Type QLE Gamma Ecl Mag Lat

°
Long

°
Sun Alt
°
Path Width km Central Dur
41 2 0023-Oct-0316:30:44 10277 258 -24443 A nn -0.0557 0.9570 6S 28W 87 15705m07s
42 3 0041-Oct-1400:25:44 10100 253 -24220 A nn -0.0761 0.9519 12S 149W 86 17705m47s
43 4 0059-Oct-2508:26:33 9924 248 -23997 A nn -0.0911 0.9472 17S 90E 85 19506m23s
44 5 0077-Nov-0416:32:22 9751 243 -23774 A nn -0.1013 0.9431 21S 32W 84 21106m55s
45 6 0095-Nov-1600:42:47 9577 238 -23551 A nn -0.1074 0.9396 25S 155W 84 22507m23s
46 7 0113-Nov-2608:54:11 9405 233 -23328 A nn -0.1120 0.9369 28S 83E 83 23607m44s
47 8 0131-Dec-0717:06:32 9233 228 -23105 A nn -0.1153 0.9347 30S 39W 83 24507m59s
48 9 0149-Dec-1801:16:35 9061 223 -22882 A nn -0.1202 0.9332 31S 161W 83 25108m07s
49 10 0167-Dec-2909:24:43 8889 218 -22659 A nn -0.1260 0.9324 31S 79E 83 25508m08s
50 11 0186-Jan-0817:25:49 8717 214 -22436 A nn -0.1374 0.9321 30S 40W 82 25608m01s
51 12 0204-Jan-2001:22:14 8545 209 -22213 A nn -0.1521 0.9324 29S 158W 81 25607m51s
52 13 0222-Jan-3009:09:13 8373 204 -21990 A nn -0.1742 0.9331 27S 86E 80 25407m36s
53 14 0240-Feb-1016:48:27 8201 200 -21767 A nn -0.2020 0.9342 25S 28W 78 25007m21s
54 15 0258-Feb-2100:16:11 8029 195 -21544 A nn -0.2390 0.9355 23S 140W 76 24707m06s
55 16 0276-Mar-0307:35:58 7857 191 -21321 A -n -0.2820 0.9370 21S 110E 74 24306m53s
56 17 0294-Mar-1414:44:30 7685 186 -21098 A -p -0.3341 0.9386 20S 3E 70 24006m43s
57 18 0312-Mar-2421:43:45 7512 182 -20875 A -p -0.3934 0.9401 18S 101W 67 23906m36s
58 19 0330-Apr-0504:33:15 7338 178 -20652 A -p -0.4601 0.9413 18S 156E 62 24106m34s
59 20 0348-Apr-1511:15:32 7165 173 -20429 A -p -0.5324 0.9424 19S 56E 58 24706m35s
60 21 0366-Apr-2617:50:06 6987 169 -20206 A -p -0.6108 0.9430 21S 43W 52 26006m38s
61 22 0384-May-0700:18:43 6810 165 -19983 A -p -0.6939 0.9432 24S 141W 46 28406m42s
62 23 0402-May-1806:43:21 6632 161 -19760 A -p -0.7798 0.9428 29S 122E 39 33106m44s
63 24 0420-May-2813:05:22 6453 157 -19537 A -p -0.8671 0.9415 37S 26E 30 43006m38s
64 25 0438-Jun-0819:25:34 6274 153 -19314 A -t -0.9556 0.9388 49S 70W 17 78206m18s
65 26 0456-Jun-1901:46:48 6096 149 -19091 P -t -1.0430 0.8890 66S 166W 0 - -
66 27 0474-Jun-3008:09:52 5920 145 -18868 P -t -1.1284 0.7428 67S 87E 0 - -
67 28 0492-Jul-1014:37:23 5744 141 -18645 P -t -1.2097 0.6034 68S 21W 0 - -
68 29 0510-Jul-2121:08:23 5569 137 -18422 P -t -1.2881 0.4695 69S 131W 0 - -
69 30 0528-Aug-0103:47:32 5393 133 -18199 P -t -1.3594 0.3479 70S 116E 0 - -
70 31 0546-Aug-1210:33:19 5217 130 -17976 P -t -1.4252 0.2359 70S 2E 0 - -
71 32 0564-Aug-2217:29:09 5044 126 -17753 P -t -1.4831 0.1379 71S 116W 0 - -
72 33 0582-Sep-0300:33:20 4872 122 -17530 Pe -t -1.5343 0.0513 72S 124E 0 - -

Statistics for Solar Eclipses of Saros 73

Solar eclipses of Saros 73 all occur at the Moon’s ascending node and the Moon moves southward with each eclipse. The series began with a partial eclipse in the northern hemisphere on -0698 Jul 27. The series ended with a partial eclipse in the southern hemisphere on 0582 Sep 03. The total duration of Saros series 73 is 1280.14 years.

Summary of Saros 73
First Eclipse -0698 Jul 27
Last Eclipse 0582 Sep 03
Series Duration 1280.14 Years
No. of Eclipses 72
Sequence 23P 7T 3H 31A 8P

Saros 73 is composed of 72 solar eclipses as follows:

Solar Eclipses of Saros 73
Eclipse Type Symbol Number Percent
All Eclipses - 72100.0%
PartialP 31 43.1%
AnnularA 31 43.1%
TotalT 7 9.7%
HybridH 3 4.2%

Umbral eclipses (annular, total and hybrid) can be further classified as either: 1) Central (two limits), 2) Central (one limit) or 3) Non-Central (one limit). The statistical distribution of these classes in Saros series 73 appears in the following table.

Umbral Eclipses of Saros 73
Classification Number Percent
All Umbral Eclipses 41100.0%
Central (two limits) 41100.0%
Central (one limit) 0 0.0%
Non-Central (one limit) 0 0.0%

The 72 eclipses in Saros 73 occur in the following order : 23P 7T 3H 31A 8P

The longest and shortest central eclipses of Saros 73 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Solar Eclipses of Saros 73
Extrema Type Date Duration Magnitude
Longest Annular Solar Eclipse 0167 Dec 2908m08s -
Shortest Annular Solar Eclipse -0103 Jul 1900m11s -
Longest Total Solar Eclipse -0229 May 0501m25s -
Shortest Total Solar Eclipse -0283 Apr 0200m58s -
Longest Hybrid Solar Eclipse -0157 Jun 1701m00s -
Shortest Hybrid Solar Eclipse -0121 Jul 0900m19s -
Largest Partial Solar Eclipse -0301 Mar 23 - 0.91921
Smallest Partial Solar Eclipse 0582 Sep 03 - 0.05132

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 Solar Eclipses: -1999 to +3000 and Thousand Year Canon of Solar 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.