The periodicity and recurrence of lunar (and 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[1] with the Moon at nearly the same distance from Earth and at the same time of year. Thus, the Saros is useful for organizing eclipses into families or series. Each series typically lasts 12 to 15 centuries and contains 70 or more lunar eclipses.
Lunar eclipses of Saros 92 all occur at the Moons ascending node and the Moon moves southward with each eclipse. The series began with a penumbral eclipse near the northern edge of the penumbra on 0208 May 17. The series ended with a penumbral eclipse near the southern edge of the penumbra on 1470 Jun 13. The total duration of Saros series 92 is 1262.11 years. In summary:
First Eclipse = 0208 May 17 18:36:22 TD Last Eclipse = 1470 Jun 13 17:08:38 TD Duration of Saros 92 = 1262.11 Years
Saros 92 is composed of 71 lunar eclipses as follows:
Lunar Eclipses of Saros 92 | |||
Eclipse Type | Symbol | Number | Percent |
All Eclipses | - | 71 | 100.0% |
Penumbral | N | 16 | 22.5% |
Partial | P | 43 | 60.6% |
Total | T | 12 | 16.9% |
The 71 lunar eclipses in Saros 92 occur in the order of 8N 23P 12T 20P 8N which corresponds to:
8 Penumbral 23 Partial 12 Total 20 Partial 8 Penumbral
The longest and shortest eclipses of Saros 92 are as follows.
Longest Total Lunar Eclipse: 0875 Jun 22 Duration = 01h45m26s Shortest Total Lunar Eclipse: 0767 Apr 19 Duration = 00h02m24s Longest Partial Lunar Eclipse: 0983 Aug 26 Duration = 03h26m24s Shortest Partial Lunar Eclipse: 0352 Aug 12 Duration = 00h43m21s Longest Penumbral Lunar Eclipse: 1344 Mar 29 Duration = 04h48m17s Shortest Penumbral Lunar Eclipse: 0208 May 17 Duration = 00h56m50s
The largest and smallest magnitude partial eclipses of Saros 92 are:
Largest Partial Lunar Eclipse: 0983 Aug 26 Magnitude = 0.9610 Smallest Partial Lunar Eclipse: 0352 Aug 12 Magnitude = 0.0384
Local circumstances at greatest eclipse[2] for every lunar eclipse of Saros 92 are presented in the following catalog. For eclipses occurring between the years -1999 to +3000 (2000 BCE to 3000 CE), the sequence number in the first column links to a eclipse geometry diagram and a map from Five Millennium Canon of Lunar Eclipses: -1999 to +3000. A detailed key and additional information about the catalog can be found at: Key to Catalog of Lunar Eclipse Saros Series.
TD of Phase Seq. Rel. Calendar Greatest Luna Ecl. Pen. Um. ---- Durations ---- Num. Num. Date Eclipse ΔT Num Type QSE Gamma Mag. Mag. Pen. Par. Total s m m m 01 -37 0208 May 17 18:36:22 8521 -22160 Nb a- 1.5180 0.0452 -0.9007 56.8 - - 02 -36 0226 May 29 02:00:34 8350 -21937 N a- 1.4498 0.1708 -0.7760 109.4 - - 03 -35 0244 Jun 08 09:23:11 8179 -21714 N a- 1.3804 0.2989 -0.6495 143.4 - - 04 -34 0262 Jun 19 16:45:31 8006 -21491 N a- 1.3112 0.4270 -0.5236 169.7 - - 05 -33 0280 Jun 30 00:08:08 7833 -21268 N a- 1.2426 0.5544 -0.3991 191.5 - - 06 -32 0298 Jul 11 07:33:40 7660 -21045 N a- 1.1766 0.6772 -0.2798 209.7 - - 07 -31 0316 Jul 21 15:02:38 7486 -20822 N a- 1.1136 0.7949 -0.1662 225.2 - - 08 -30 0334 Aug 01 22:35:06 7310 -20599 N a- 1.0539 0.9067 -0.0589 238.5 - - 09 -29 0352 Aug 12 06:13:36 7134 -20376 P a- 0.9996 1.0090 0.0384 249.8 43.4 - 10 -28 0370 Aug 23 13:58:02 6957 -20153 P a- 0.9507 1.1014 0.1254 259.3 77.7 - 11 -27 0388 Sep 02 21:50:16 6780 -19930 P a- 0.9085 1.1817 0.2001 267.3 97.3 - 12 -26 0406 Sep 14 05:48:01 6602 -19707 P a- 0.8713 1.2527 0.2654 274.1 111.3 - 13 -25 0424 Sep 24 13:54:44 6423 -19484 P a- 0.8422 1.3091 0.3160 279.6 120.9 - 14 -24 0442 Oct 05 22:07:34 6245 -19261 P a- 0.8187 1.3550 0.3563 284.1 127.9 - 15 -23 0460 Oct 16 06:27:57 6067 -19038 P a- 0.8021 1.3882 0.3841 287.6 132.6 - 16 -22 0478 Oct 27 14:52:48 5889 -18815 P a- 0.7899 1.4132 0.4039 290.5 135.9 - 17 -21 0496 Nov 06 23:23:50 5713 -18592 P a- 0.7834 1.4275 0.4135 292.6 137.7 - 18 -20 0514 Nov 18 07:57:20 5536 -18369 P a- 0.7797 1.4365 0.4182 294.4 138.8 - 19 -19 0532 Nov 28 16:33:14 5360 -18146 P a- 0.7789 1.4398 0.4178 295.7 139.1 - 20 -18 0550 Dec 10 01:09:23 5185 -17923 P a- 0.7790 1.4413 0.4161 296.9 139.2 - 21 -17 0568 Dec 20 09:45:04 5011 -17700 P a- 0.7798 1.4411 0.4134 297.9 139.2 - 22 -16 0586 Dec 31 18:16:58 4839 -17477 P a- 0.7779 1.4455 0.4158 299.2 140.0 - 23 -15 0605 Jan 11 02:44:30 4668 -17254 P a- 0.7732 1.4548 0.4237 300.9 141.6 - 24 -14 0623 Jan 22 11:05:47 4498 -17031 P a- 0.7644 1.4716 0.4395 303.0 144.2 - 25 -13 0641 Feb 01 19:20:41 4330 -16808 P a- 0.7512 1.4961 0.4634 305.6 148.0 - 26 -12 0659 Feb 13 03:25:32 4164 -16585 P h- 0.7305 1.5342 0.5011 309.1 153.5 - 27 -11 0677 Feb 23 11:22:19 3999 -16362 P h- 0.7040 1.5829 0.5497 313.1 160.0 - 28 -10 0695 Mar 06 19:08:00 3836 -16139 P t- 0.6691 1.6471 0.6138 318.0 167.9 - 29 -09 0713 Mar 17 02:45:03 3675 -15916 P t- 0.6279 1.7226 0.6893 323.2 176.3 - 30 -08 0731 Mar 28 10:09:54 3517 -15693 P t- 0.5778 1.8146 0.7811 329.0 185.4 - 31 -07 0749 Apr 07 17:26:53 3361 -15470 P t- 0.5220 1.9173 0.8834 334.8 194.2 - 32 -06 0767 Apr 19 00:33:10 3208 -15247 T t- 0.4581 2.0348 1.0002 340.8 203.0 2.4 33 -05 0785 Apr 29 07:32:14 3058 -15024 T t- 0.3891 2.1619 1.1263 346.3 210.9 55.1 34 -04 0803 May 10 14:22:49 2911 -14801 T pp 0.3139 2.3006 1.2637 351.5 218.0 76.2 35 -03 0821 May 20 21:08:36 2768 -14578 T+ pp 0.2354 2.4455 1.4068 356.0 223.7 90.0 36 -02 0839 Jun 01 03:49:08 2628 -14355 T+ pp 0.1534 2.5971 1.5561 359.7 228.0 99.1 37 -01 0857 Jun 11 10:26:01 2492 -14132 T+ pp 0.0691 2.7531 1.7094 362.4 230.8 104.1 38 00 0875 Jun 22 17:01:48 2359 -13909 T- pp -0.0154 2.8533 1.8064 364.1 231.8 105.4 39 01 0893 Jul 02 23:37:17 2231 -13686 T- pp -0.0998 2.7003 1.6499 364.7 231.2 103.0 40 02 0911 Jul 14 06:14:57 2107 -13463 T- pp -0.1816 2.5522 1.4978 364.4 228.9 96.8
TD of Phase Seq. Rel. Calendar Greatest Luna Ecl. Pen. Um. ---- Durations ---- Num. Num. Date Eclipse ΔT Num Type QSE Gamma Mag. Mag. Pen. Par. Total s m m m 41 03 0929 Jul 24 12:54:35 1987 -13240 T- pp -0.2611 2.4085 1.3498 363.1 225.1 86.3 42 04 0947 Aug 04 19:39:58 1872 -13017 T -t -0.3354 2.2745 1.2112 361.1 219.9 70.6 43 05 0965 Aug 15 02:30:04 1761 -12794 T -t -0.4053 2.1487 1.0806 358.4 213.6 45.6 44 06 0983 Aug 26 09:26:42 1655 -12571 P -t -0.4691 2.0340 0.9610 355.3 206.4 - 45 07 1001 Sep 05 16:30:33 1553 -12348 P -t -0.5266 1.9311 0.8531 351.9 198.6 - 46 08 1019 Sep 16 23:43:14 1456 -12125 P -t -0.5760 1.8429 0.7600 348.7 190.8 - 47 09 1037 Sep 27 07:04:05 1364 -11902 P -t -0.6185 1.7672 0.6796 345.6 183.2 - 48 10 1055 Oct 08 14:32:40 1276 -11679 P -t -0.6543 1.7038 0.6118 342.8 176.0 - 49 11 1073 Oct 18 22:09:44 1193 -11456 P -t -0.6827 1.6537 0.5577 340.4 169.7 - 50 12 1091 Oct 30 05:54:30 1114 -11233 P -t -0.7043 1.6159 0.5163 338.6 164.5 - 51 13 1109 Nov 09 13:45:00 1039 -11010 P -t -0.7211 1.5865 0.4841 337.2 160.2 - 52 14 1127 Nov 20 21:40:54 969 -10787 P -t -0.7332 1.5654 0.4608 336.1 156.9 - 53 15 1145 Dec 01 05:40:07 903 -10564 P -t -0.7425 1.5490 0.4429 335.2 154.3 - 54 16 1163 Dec 12 13:42:18 841 -10341 P -t -0.7493 1.5368 0.4301 334.5 152.4 - 55 17 1181 Dec 22 21:43:01 783 -10118 P -t -0.7570 1.5225 0.4161 333.5 150.3 - 56 18 1200 Jan 03 05:44:10 729 -9895 P -t -0.7645 1.5084 0.4030 332.4 148.2 - 57 19 1218 Jan 13 13:40:34 678 -9672 P -t -0.7754 1.4875 0.3839 330.6 145.0 - 58 20 1236 Jan 24 21:33:27 631 -9449 P -t -0.7894 1.4605 0.3594 328.3 140.8 - 59 21 1254 Feb 04 05:18:13 586 -9226 P -t -0.8099 1.4213 0.3232 324.9 134.2 - 60 22 1272 Feb 15 12:57:53 545 -9003 P -t -0.8346 1.3742 0.2798 320.6 125.6 - 61 23 1290 Feb 25 20:28:11 506 -8780 P -t -0.8665 1.3135 0.2232 315.0 113.0 - 62 24 1308 Mar 08 03:50:42 470 -8557 P -t -0.9050 1.2406 0.1548 307.9 95.0 - 63 25 1326 Mar 19 11:03:40 436 -8334 P -t -0.9512 1.1535 0.0722 299.0 65.6 - 64 26 1344 Mar 29 18:09:24 405 -8111 Nx -t -1.0035 1.0552 -0.0213 288.3 - - 65 27 1362 Apr 10 01:06:46 375 -7888 N -t -1.0626 0.9445 -0.1274 275.2 - - 66 28 1380 Apr 20 07:57:16 347 -7665 N -t -1.1271 0.8236 -0.2435 259.4 - - 67 29 1398 May 01 14:41:55 320 -7442 N -t -1.1967 0.6937 -0.3691 240.5 - - 68 30 1416 May 11 21:22:21 295 -7219 N -t -1.2700 0.5571 -0.5015 217.7 - - 69 31 1434 May 23 03:58:56 271 -6996 N -t -1.3466 0.4146 -0.6401 189.8 - - 70 32 1452 Jun 02 10:34:09 249 -6773 N -t -1.4244 0.2701 -0.7812 154.7 - - 71 33 1470 Jun 13 17:08:38 228 -6550 N -t -1.5032 0.1241 -0.9242 105.9 - -
[1] The Moon's orbit is inclined about 5 degrees to Earth's orbit around the Sun. The points where the lunar orbit intersects the plane of Earth's orbit are known as the nodes. The Moon moves from south to north of Earth's orbit at the ascending node, and from north to south at the descending node.
[2]Greatest eclipse is defined as the instant when Moon passes closest to the axis of Earth's shadow.
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..
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:
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.
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 Lunar Eclipses: -1999 to +3000 and Five Millennium Catalog of Lunar 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)"