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 106 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 0595 Jul 27. The series ended with a penumbral eclipse near the southern edge of the penumbra on 1893 Sep 25. The total duration of Saros series 106 is 1298.17 years. In summary:
First Eclipse = 0595 Jul 27 01:33:13 TD Last Eclipse = 1893 Sep 25 20:38:60 TD Duration of Saros 106 = 1298.17 Years
Saros 106 is composed of 73 lunar eclipses as follows:
Lunar Eclipses of Saros 106 | |||
Eclipse Type | Symbol | Number | Percent |
All Eclipses | - | 73 | 100.0% |
Penumbral | N | 27 | 37.0% |
Partial | P | 19 | 26.0% |
Total | T | 27 | 37.0% |
The 73 lunar eclipses in Saros 106 occur in the order of 19N 10P 27T 9P 8N which corresponds to:
19 Penumbral 10 Partial 27 Total 9 Partial 8 Penumbral
The longest and shortest eclipses of Saros 106 are as follows.
Longest Total Lunar Eclipse: 1226 Aug 09 Duration = 01h39m39s Shortest Total Lunar Eclipse: 1587 Mar 24 Duration = 00h35m45s Longest Partial Lunar Eclipse: 1100 May 25 Duration = 03h07m58s Shortest Partial Lunar Eclipse: 0938 Feb 17 Duration = 00h26m17s Longest Penumbral Lunar Eclipse: 0920 Feb 07 Duration = 04h17m13s Shortest Penumbral Lunar Eclipse: 1893 Sep 25 Duration = 00h38m56s
The largest and smallest magnitude partial eclipses of Saros 106 are:
Largest Partial Lunar Eclipse: 1605 Apr 03 Magnitude = 0.9861 Smallest Partial Lunar Eclipse: 0938 Feb 17 Magnitude = 0.0133
Local circumstances at greatest eclipse[2] for every lunar eclipse of Saros 106 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 -35 0595 Jul 27 01:33:13 4758 -17371 Nb t- 1.5221 0.0900 -0.9596 90.2 - - 02 -34 0613 Aug 06 08:29:10 4587 -17148 N t- 1.4514 0.2195 -0.8298 138.8 - - 03 -33 0631 Aug 17 15:33:22 4418 -16925 N t- 1.3860 0.3395 -0.7097 170.3 - - 04 -32 0649 Aug 27 22:47:19 4251 -16702 N t- 1.3270 0.4478 -0.6015 193.0 - - 05 -31 0667 Sep 08 06:11:10 4085 -16479 N t- 1.2749 0.5435 -0.5061 210.1 - - 06 -30 0685 Sep 18 13:46:00 3921 -16256 N h- 1.2307 0.6248 -0.4250 222.9 - - 07 -29 0703 Sep 29 21:30:42 3759 -16033 N h- 1.1934 0.6934 -0.3566 232.5 - - 08 -28 0721 Oct 10 05:25:14 3600 -15810 N a- 1.1632 0.7487 -0.3012 239.6 - - 09 -27 0739 Oct 21 13:28:49 3443 -15587 N a- 1.1394 0.7922 -0.2574 244.6 - - 10 -26 0757 Oct 31 21:41:14 3288 -15364 N a- 1.1221 0.8235 -0.2253 247.9 - - 11 -25 0775 Nov 12 05:59:14 3137 -15141 N a- 1.1088 0.8474 -0.2002 250.0 - - 12 -24 0793 Nov 22 14:23:41 2988 -14918 N a- 1.1000 0.8626 -0.1832 251.0 - - 13 -23 0811 Dec 03 22:51:00 2843 -14695 N a- 1.0931 0.8741 -0.1694 251.5 - - 14 -22 0829 Dec 14 07:21:21 2701 -14472 N a- 1.0879 0.8822 -0.1583 251.5 - - 15 -21 0847 Dec 25 15:50:18 2563 -14249 N a- 1.0809 0.8933 -0.1436 251.9 - - 16 -20 0866 Jan 05 00:19:44 2428 -14026 N a- 1.0736 0.9044 -0.1283 252.1 - - 17 -19 0884 Jan 16 08:45:25 2298 -13803 N a- 1.0630 0.9215 -0.1064 253.0 - - 18 -18 0902 Jan 26 17:07:20 2172 -13580 N a- 1.0483 0.9458 -0.0769 254.6 - - 19 -17 0920 Feb 07 01:22:57 2050 -13357 N a- 1.0279 0.9805 -0.0366 257.2 - - 20 -16 0938 Feb 17 09:33:20 1932 -13134 P a- 1.0023 1.0244 0.0133 260.6 26.3 - 21 -15 0956 Feb 28 17:36:42 1819 -12911 P a- 0.9704 1.0799 0.0748 264.8 61.7 - 22 -14 0974 Mar 11 01:32:38 1710 -12688 P a- 0.9317 1.1478 0.1489 269.7 85.9 - 23 -13 0992 Mar 21 09:21:55 1606 -12465 P a- 0.8867 1.2273 0.2344 275.3 106.2 - 24 -12 1010 Apr 01 17:04:25 1506 -12242 P a- 0.8352 1.3188 0.3319 281.2 124.2 - 25 -11 1028 Apr 12 00:40:17 1412 -12019 P a- 0.7775 1.4218 0.4405 287.3 140.4 - 26 -10 1046 Apr 23 08:10:38 1321 -11796 P a- 0.7145 1.5347 0.5587 293.3 154.8 - 27 -09 1064 May 03 15:36:35 1236 -11573 P a- 0.6470 1.6562 0.6850 298.9 167.5 - 28 -08 1082 May 14 22:59:40 1155 -11350 P a- 0.5763 1.7838 0.8169 304.1 178.5 - 29 -07 1100 May 25 06:19:17 1078 -11127 P a- 0.5017 1.9186 0.9556 308.8 188.0 - 30 -06 1118 Jun 05 13:39:05 1005 -10904 T a- 0.4266 2.0549 1.0950 312.7 195.7 45.5 31 -05 1136 Jun 15 20:58:24 937 -10681 T a- 0.3500 2.1941 1.2368 315.8 201.9 68.6 32 -04 1154 Jun 27 04:20:08 873 -10458 T p- 0.2750 2.3309 1.3754 318.1 206.5 82.2 33 -03 1172 Jul 07 11:43:06 813 -10235 T+ p- 0.2002 2.4674 1.5132 319.8 209.8 91.1 34 -02 1190 Jul 18 19:11:31 757 -10012 T+ p- 0.1293 2.5972 1.6436 320.6 211.8 96.3 35 -01 1208 Jul 29 02:44:05 704 -9789 T+ pp 0.0611 2.7223 1.7688 320.9 212.8 99.0 36 00 1226 Aug 09 10:22:59 655 -9566 T- pp -0.0021 2.8309 1.8770 320.6 212.8 99.6 37 01 1244 Aug 19 18:08:09 609 -9343 T- pp -0.0604 2.7243 1.7694 320.0 212.0 98.7 38 02 1262 Aug 31 02:01:40 566 -9120 T- pp -0.1120 2.6303 1.6741 319.1 210.8 96.5 39 03 1280 Sep 10 10:02:47 526 -8897 T- -p -0.1577 2.5474 1.5895 318.0 209.2 93.5 40 04 1298 Sep 21 18:11:08 489 -8674 T- -p -0.1975 2.4751 1.5155 316.9 207.5 90.0
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 05 1316 Oct 02 02:28:20 454 -8451 T- -p -0.2301 2.4164 1.4547 315.8 205.8 86.5 42 06 1334 Oct 13 10:52:55 421 -8228 T- -p -0.2565 2.3690 1.4053 314.9 204.2 83.1 43 07 1352 Oct 23 19:25:34 390 -8005 T -p -0.2765 2.3333 1.3677 314.2 202.9 80.2 44 08 1370 Nov 04 04:03:32 361 -7782 T -p -0.2920 2.3057 1.3383 313.6 201.8 77.6 45 09 1388 Nov 14 12:48:27 334 -7559 T -p -0.3020 2.2882 1.3193 313.2 201.1 75.9 46 10 1406 Nov 25 21:36:51 308 -7336 T -p -0.3091 2.2757 1.3057 313.0 200.6 74.6 47 11 1424 Dec 06 06:28:42 284 -7113 T -p -0.3134 2.2682 1.2975 312.9 200.3 73.7 48 12 1442 Dec 17 15:21:21 261 -6890 T -p -0.3170 2.2617 1.2906 312.8 200.0 73.1 49 13 1460 Dec 28 00:14:45 239 -6667 T -p -0.3200 2.2561 1.2851 312.7 199.9 72.5 50 14 1479 Jan 08 09:05:26 218 -6444 T -p -0.3253 2.2462 1.2757 312.6 199.6 71.6 51 15 1497 Jan 18 17:53:14 199 -6221 T -p -0.3330 2.2315 1.2619 312.3 199.2 70.2 52 16 1515 Jan 30 02:35:56 181 -5998 T -p -0.3447 2.2094 1.2410 311.9 198.5 67.8 53 17 1533 Feb 09 11:13:52 164 -5775 T -p -0.3602 2.1804 1.2134 311.2 197.6 64.5 54 18 1551 Feb 20 19:43:12 149 -5552 T -p -0.3827 2.1382 1.1729 310.3 196.0 58.9 55 19 1569 Mar 03 04:06:08 136 -5329 T -a -0.4104 2.0865 1.1228 308.9 193.9 50.5 56 20 1587 Mar 24 12:19:48 125 -5106 T -a -0.4456 2.0211 1.0591 307.1 190.8 35.7 57 21 1605 Apr 03 20:27:02 113 -4883 P -a -0.4858 1.9467 0.9861 304.8 186.9 - 58 22 1623 Apr 15 04:23:33 89 -4660 P -a -0.5345 1.8566 0.8972 301.6 181.4 - 59 23 1641 Apr 25 12:14:36 62 -4437 P -a -0.5876 1.7588 0.8003 297.8 174.6 - 60 24 1659 May 06 19:56:13 36 -4214 P -a -0.6484 1.6470 0.6890 292.8 165.3 - 61 25 1677 May 17 03:32:58 16 -3991 P -a -0.7127 1.5290 0.5710 286.8 153.7 - 62 26 1695 May 28 11:01:57 8 -3768 P -a -0.7830 1.4003 0.4417 279.3 138.2 - 63 27 1713 Jun 08 18:28:15 9 -3545 P -a -0.8551 1.2685 0.3089 270.6 118.1 - 64 28 1731 Jun 20 01:49:42 11 -3322 P -a -0.9307 1.1306 0.1692 260.2 89.4 - 65 29 1749 Jun 30 09:09:16 13 -3099 P -a -1.0073 0.9913 0.0276 248.2 36.9 - 66 30 1767 Jul 11 16:27:13 16 -2876 N -a -1.0845 0.8511 -0.1155 234.2 - - 67 31 1785 Jul 21 23:45:46 17 -2653 N -a -1.1605 0.7134 -0.2568 218.2 - - 68 32 1803 Aug 03 07:05:09 12 -2430 N -a -1.2349 0.5790 -0.3953 200.0 - - 69 33 1821 Aug 13 14:26:43 11 -2207 N -a -1.3066 0.4497 -0.5292 179.2 - - 70 34 1839 Aug 24 21:52:11 5 -1984 N -a -1.3743 0.3281 -0.6560 155.5 - - 71 35 1857 Sep 04 05:22:14 7 -1761 N -a -1.4376 0.2148 -0.7748 127.6 - - 72 36 1875 Sep 15 12:57:27 -4 -1538 N -a -1.4955 0.1115 -0.8839 93.2 - - 73 37 1893 Sep 25 20:39:00 -6 -1315 Ne -a -1.5476 0.0190 -0.9825 38.9 - -
[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)"