Hybrid Solar Eclipses with Durations Exceeding 01m 00s

-0999 to 0000 ( 1000 BCE to 1 BCE )

Introduction

Eclipses of the Sun can only occur during the New Moon phase. It is then possible for the Moon's penumbral, umbral or antumbral shadows to sweep across Earth's surface thereby producing an eclipse. Not all New Moons result in a solar eclipse because the Moon's orbit is tilted about 5 degrees to Earth's about the Sun. Consequently, the Moon's shadows miss Earth at most New Moon's. Nevertheless, there are 2 to 5 solar eclipses every calendar year. There are four types of solar eclipses: partial, annular, total and hybrid[1]. For more information, see Basic Solar Eclipse Geometry.


Solar Eclipses: -0999 to 0000 ( 1000 BCE to 1 BCE)

During the 10 century period -0999 to 0000 ( 1000 BCE to 1 BCE[2]), Earth experienced 2373 solar eclipses. The following table shows the number of eclipses of each type over this period.

Solar Eclipses: -0999 - 0000
Eclipse Type Symbol Number Percent
All Eclipses - 2373100.0%
PartialP 857 36.1%
AnnularA 764 32.2%
TotalT 622 26.2%
HybridH 130 5.5%

Annular and total eclipses 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 during the 1st century BCE appears in the following three tables (no Hybrids are included since all are central with two limits).

Annular and Total Eclipses
Classification Number Percent
All 1386100.0%
Central (two limits) 1352 97.5%
Central (one limit) 14 1.0%
Non-Central (one limit) 20 1.4%
Annular Eclipses
Classification Number Percent
All Annular Eclipses 764100.0%
Central (two limits) 743 97.3%
Central (one limit) 10 1.3%
Non-Central (one limit) 11 1.4%
Total Eclipses
Classification Number Percent
All Total Eclipses 622100.0%
Central (two limits) 609 97.9%
Central (one limit) 4 0.6%
Non-Central (one limit) 9 1.4%

Long Hybrid Solar Eclipses

The longest central[3] solar eclipses of this period are:

          Longest Total   Solar Eclipse:   -0743 Jun 15      Duration = 07m28s
          Longest Annular Solar Eclipse:   -0177 Dec 22      Duration = 12m08s
          Longest Hybrid  Solar Eclipse:   -0979 Aug 13      Duration = 01m48s

Long Hybrid Solar Eclipses are relatively rare. The following catalog lists concise details and local circumstances for all Hybrid Solar Eclipses with durations exceeding 01m 00s. The Key to Catalog of Solar Eclipses contains a detailed description and explanation of each item listed in the catalog. For eclipses from -1999 to +3000, the Catalog Number in the first column serves as a link to a global map of Earth showing the geographic visibility of each eclipse. The date and time of the eclipse are given at the instant of greatest eclipse[4] in Terrestrial Dynamical Time. The Saros Number in the sixth column links to a table listing all eclipses in the Saros series. The Key to Solar Eclipse Maps explains the features plotted on each map.

The data presented here are based in part on the Five Millennium Canon of Solar Eclipses: -1999 to +3000.



Catalog of Long Hybrid Solar Eclipses: -0999 to 0000


                      TD of
Catalog  Calendar   Greatest          Luna Saros Ecl.           Ecl.                Sun Sun  Path Central
Number     Date      Eclipse     ΔT    Num  Num  Type  Gamma    Mag.   Lat.   Long. Alt Azm Width   Dur.
                                  s                                      °      °    °    °   km

02448 -0979 Aug 13  02:47:53  24145 -36838   39   H3  -0.2387  1.0168   4.5N 123.0W  76  10   59  01m48s
02489 -0961 Aug 24  10:31:09  23834 -36615   39   H   -0.2836  1.0100   1.2S 118.5E  74  13   36  01m05s
02531 -0942 Feb 27  12:29:02  23518 -36386   44   H   -0.4016  1.0118  34.7S 102.5E  66 342   44  01m05s
02806 -0820 Jul 26  06:32:15  21477 -34872   42   H3   0.3561  1.0161  41.8N 179.2E  69 200   59  01m24s
02889 -0783 Feb 09  15:39:19  20886 -34420   47   H    0.2535  1.0125   3.4S  31.3E  75 158   44  01m14s
03183 -0661 Jul 09  10:36:00  18910 -32906   45   H3  -0.4659  1.0146   4.3S 100.3E  62 358   56  01m38s
03275 -0624 Jan 23  18:26:58  18315 -32454   50   H   -0.0754  1.0131  25.5S  16.0W  86 354   45  01m18s
03677 -0465 Jan 05  20:54:17  15936 -30488   53   H   -0.1117  1.0141  29.8S  63.5W  83 349   49  01m20s
03748 -0437 Dec 17  10:19:56  15537 -30130   54   H3   0.1286  1.0173  16.2S  91.0E  83 190   60  01m45s
03791 -0419 Dec 27  19:00:22  15293 -29907   54   H    0.1333  1.0160  16.2S  39.4W  82 185   55  01m39s

03833 -0400 Jan 08  03:36:41  15052 -29684   54   H    0.1409  1.0152  15.1S 168.9W  82 180   53  01m35s
03834 -0400 Jul 02  08:43:41  15046 -29678   59   H   -0.1015  1.0092  18.0N 111.6E  84 356   32  01m01s
03875 -0382 Jan 18  12:05:58  14815 -29461   54   H    0.1538  1.0147  12.9S  63.2E  81 176   51  01m33s
03876 -0382 Jul 13  15:50:17  14809 -29455   59   Hm  -0.1735  1.0107  13.0N   4.0E  80   1   38  01m12s
03883 -0379 May 13  05:25:04  14772 -29420   51   H3  -0.4803  1.0155   9.8S 169.2E  61 338   60  01m34s
03916 -0364 Jan 29  20:27:34  14581 -29238   54   H    0.1722  1.0144   9.5S  63.3W  80 172   50  01m31s
03917 -0364 Jul 23  23:05:36  14575 -29232   59   H   -0.2391  1.0118   7.6N 106.3W  76   5   42  01m19s
03924 -0361 May 24  12:23:59  14539 -29197   51   H   -0.5616  1.0115  12.8S  63.5E  56 341   47  01m12s
03955 -0346 Feb 09  04:40:17  14351 -29015   54   H    0.1973  1.0142   5.1S 172.0E  79 169   50  01m30s
03956 -0346 Aug 04  06:28:34  14345 -29009   59   H   -0.2990  1.0123   1.9N 140.8E  73   8   44  01m22s

03995 -0328 Feb 20  12:44:07  14124 -28792   54   H    0.2290  1.0141   0.1N  48.9E  77 166   50  01m29s
03996 -0328 Aug 14  14:00:58  14118 -28786   59   H   -0.3519  1.0126   4.1S  25.1E  69  12   46  01m21s
04004 -0325 Dec 08  14:25:47  14076 -28745   56   H    0.3213  1.0123   4.3S  25.4E  71 192   45  01m16s
04023 -0316 Jul 04  10:53:21  13970 -28639   70   H3  -0.5847  1.0137  12.0S  69.4E  54   8   58  01m30s
04029 -0314 Nov 07  18:59:06  13941 -28610   57   H3  -0.3363  1.0168  34.7S  54.9W  70  15   61  01m30s
04036 -0310 Mar 02  20:37:22  13900 -28569   54   H    0.2687  1.0139   6.2N  72.0W  74 164   49  01m26s
04037 -0310 Aug 25  21:42:10  13894 -28563   59   H   -0.3981  1.0124  10.2S  93.1W  66  14   47  01m18s
04045 -0307 Dec 18  23:08:59  13853 -28522   56   H    0.3218  1.0156   5.0S 106.6W  71 188   57  01m38s
04070 -0296 Nov 18  03:41:28  13719 -28387   57   H   -0.3389  1.0133  38.3S 175.0E  70  11   49  01m11s
04078 -0292 Mar 13  04:21:15  13679 -28346   54   H    0.3154  1.0134  13.0N 169.1E  72 162   48  01m22s

04079 -0292 Sep 05  05:33:58  13673 -28340   59   H   -0.4363  1.0123  16.2S 145.9E  64  17   47  01m14s
04111 -0277 May 24  23:12:00  13495 -28158   62   H    0.0249  1.0093  21.4N 114.0W  88 173   32  01m00s
04118 -0274 Mar 24  11:55:07  13461 -28123   54   H    0.3695  1.0126  20.3N  52.3E  68 161   47  01m15s
04119 -0274 Sep 16  13:35:23  13455 -28117   59   H   -0.4671  1.0120  22.2S  22.5E  62  19   46  01m09s
04151 -0259 Jun 04  06:07:27  13279 -27935   62   Hm   0.1047  1.0130  28.1N 141.2E  84 176   45  01m21s
04158 -0256 Apr 03  19:20:53  13246 -27900   54   H    0.4293  1.0114  28.2N  62.6W  64 160   43  01m05s
04159 -0256 Sep 26  21:45:25  13240 -27894   59   H   -0.4915  1.0119  27.9S 102.8W  60  20   47  01m06s
04192 -0241 Jun 15  13:05:26  13066 -27712   62   H2   0.1836  1.0160  34.0N  36.8E  79 181   56  01m34s
04200 -0238 Oct 08  06:05:19  13027 -27671   59   H   -0.5085  1.0118  33.4S 129.9E  59  21   47  01m03s
04241 -0220 Oct 18  14:32:51  12818 -27448   59   H   -0.5201  1.0122  38.6S   1.3E  58  21   49  01m03s

04282 -0202 Oct 29  23:07:46  12611 -27225   59   H   -0.5261  1.0129  43.3S 128.1W  58  20   52  01m05s
04323 -0184 Nov 09  07:46:40  12406 -27002   59   H   -0.5296  1.0140  47.6S 102.6E  58  17   57  01m08s
04393 -0155 Oct 20  21:16:23  12083 -26644   60   H    0.5448  1.0130  19.8N  76.3W  57 209   53  01m10s
04479 -0118 May 07  03:35:48  11683 -26192   65   Hm  -0.1145  1.0125   9.7N 175.8E  83 337   43  01m15s
04522 -0100 May 17  10:37:31  11489 -25969   65   H2  -0.1912  1.0170   8.4N  70.5E  79 340   59  01m44s
04684 -0034 May 09  05:47:57  10796 -25153   76   H   -0.5697  1.0131  17.7S 143.3E  55 348   55  01m23s
04731 -0016 May 19  12:49:09  10611 -24930   76   H   -0.4948  1.0112  10.1S  34.3E  60 352   44  01m15s


Calendar

The Gregorian calendar is used for all 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..


Predictions

The coordinates of the Sun used in these predictions are based on the VSOP87 theory [Bretagnon and Francou, 1988]. The Moon's coordinates are based on the ELP-2000/82 theory [Chapront-Touze and Chapront, 1983]. For more information, see: Solar and Lunar Ephemerides. The revised value used for the Moon's secular acceleration is n-dot = -25.858 arc-sec/cy*cy, as deduced from the Apollo lunar laser ranging experiment (Chapront, Chapront-Touze, and Francou, 2002).

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 -1999 to +3000. The uncertainty in ΔT over this period can be estimated from scatter in the measurements.


Footnotes

[1] Hybrid eclipses are also known as annular/total eclipses. Such an eclipse is both total and annular along different sections of its umbral path. (See: Five Millennium Catalog of Hybrid Solar Eclipses)

[2] The terms BCE and CE are abbreviations for "Before Common Era" and "Common Era," respectively. They are the secular equivalents to the BC and AD dating conventions. (See: Year Dating Conventions )

[3] Central solar eclipses are eclipses in which the central axis of the Moon's shadow strikes the Earth's surface. All partial (penumbral) eclipses are non-central eclipses since the shadow axis misses Earth. However, umbral eclipses (total, annular and hybrid) may be either central (usually) or non-central (rarely).

[4] Greatest eclipse is defined as the instant when the axis of the Moon's shadow passes closest to the Earth's center. For total eclipses, the instant of greatest eclipse is virtually identical to the instants of greatest magnitude and greatest duration. However, for annular eclipses, the instant of greatest duration may occur at either the time of greatest eclipse or near the sunrise and sunset points of the eclipse path.


Acknowledgments

Special thanks to Dan McGlaun for extracting the individual eclipse maps from the Five Millennium Canon of Solar Eclipses: -1999 to +3000 for use in this catalog.

The Besselian elements used in the predictions were kindly provided by Jean Meeus. All eclipse calculations are by Fred Espenak, and he assumes full responsibility for their accuracy. Some of the information presented on this web site is based on data originally published in Five Millennium Canon of Solar Eclipses: -1999 to +3000

Permission is freely granted to reproduce this data when accompanied by an acknowledgment:

"Eclipse Predictions by Fred Espenak and Jean Meeus (NASA's GSFC)"


Eclipse Links

Five Millennium Catalog of Solar Eclipses

Ten Millennium Catalog of Long Solar Eclipses

Catalog of Solar Eclipse Saros Series

World Atlas of Solar Eclipse Paths

2007 May 11