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 143 all occur at the Moons descending node and the Moon moves northward with each eclipse. The series began with a penumbral eclipse near the southern edge of the penumbra on 1720 Aug 18. The series will end with a penumbral eclipse near the northern edge of the penumbra on 3000 Oct 05. The total duration of Saros series 143 is 1280.14 years. In summary:
First Eclipse = 1720 Aug 18 02:31:47 TD Last Eclipse = 3000 Oct 05 17:10:38 TD Duration of Saros 143 = 1280.14 Years
Saros 143 is composed of 72 lunar eclipses as follows:
Lunar Eclipses of Saros 143 | |||
Eclipse Type | Symbol | Number | Percent |
All Eclipses | - | 72 | 100.0% |
Penumbral | N | 27 | 37.5% |
Partial | P | 18 | 25.0% |
Total | T | 27 | 37.5% |
The 72 lunar eclipses in Saros 143 occur in the order of 19N 10P 27T 8P 8N which corresponds to:
19 Penumbral 10 Partial 27 Total 8 Partial 8 Penumbral
The longest and shortest eclipses of Saros 143 are as follows.
Longest Total Lunar Eclipse: 2351 Sep 06 Duration = 01h39m09s Shortest Total Lunar Eclipse: 2712 Apr 13 Duration = 00h30m00s Longest Partial Lunar Eclipse: 2730 Apr 25 Duration = 03h10m18s Shortest Partial Lunar Eclipse: 2063 Mar 14 Duration = 00h40m38s Longest Penumbral Lunar Eclipse: 2874 Jul 20 Duration = 04h14m56s Shortest Penumbral Lunar Eclipse: 3000 Oct 05 Duration = 00h53m32s
The largest and smallest magnitude partial eclipses of Saros 143 are:
Largest Partial Lunar Eclipse: 2730 Apr 25 Magnitude = 0.9579 Smallest Partial Lunar Eclipse: 2063 Mar 14 Magnitude = 0.0342
Local circumstances at greatest eclipse[2] for every lunar eclipse of Saros 143 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 1720 Aug 18 02:31:47 10 -3456 N a- -1.4936 0.1213 -0.8866 99.2 - - 02 -34 1738 Aug 29 09:51:16 11 -3233 N a- -1.4268 0.2433 -0.7636 138.5 - - 03 -33 1756 Sep 08 17:19:28 14 -3010 N a- -1.3658 0.3549 -0.6514 165.0 - - 04 -32 1774 Sep 20 00:57:04 16 -2787 N a- -1.3118 0.4539 -0.5520 184.2 - - 05 -31 1792 Sep 30 08:43:05 16 -2564 N a- -1.2636 0.5423 -0.4634 199.0 - - 06 -30 1810 Oct 12 16:39:20 12 -2341 N a- -1.2230 0.6167 -0.3889 210.1 - - 07 -29 1828 Oct 23 00:44:42 8 -2118 N a- -1.1889 0.6793 -0.3263 218.5 - - 08 -28 1846 Nov 03 08:59:23 6 -1895 N a- -1.1618 0.7287 -0.2766 224.5 - - 09 -27 1864 Nov 13 17:21:25 6 -1672 N a- -1.1402 0.7683 -0.2367 228.9 - - 10 -26 1882 Nov 25 01:51:01 -6 -1449 N a- -1.1243 0.7972 -0.2071 231.8 - - 11 -25 1900 Dec 06 10:26:29 -1 -1226 N a- -1.1125 0.8183 -0.1851 233.7 - - 12 -24 1918 Dec 17 19:06:01 21 -1003 N a- -1.1035 0.8340 -0.1679 234.9 - - 13 -23 1936 Dec 28 03:49:09 24 -780 N a- -1.0970 0.8451 -0.1550 235.5 - - 14 -22 1955 Jan 08 12:33:20 31 -557 N a- -1.0906 0.8555 -0.1421 236.0 - - 15 -21 1973 Jan 18 21:17:58 43 -334 N a- -1.0844 0.8655 -0.1293 236.5 - - 16 -20 1991 Jan 30 05:59:38 58 -111 N a- -1.0752 0.8807 -0.1106 237.5 - - 17 -19 2009 Feb 09 14:39:22 66 112 N a- -1.0640 0.8994 -0.0882 238.8 - - 18 -18 2027 Feb 20 23:14:06 76 335 N a- -1.0480 0.9266 -0.0569 241.0 - - 19 -17 2045 Mar 03 07:43:26 89 558 N a- -1.0274 0.9623 -0.0168 243.9 - - 20 -16 2063 Mar 14 16:05:49 120 781 P a- -1.0007 1.0088 0.0342 247.8 40.6 - 21 -15 2081 Mar 25 00:22:01 159 1004 P a- -0.9687 1.0652 0.0953 252.4 67.1 - 22 -14 2099 Apr 05 08:30:56 201 1227 P a- -0.9304 1.1333 0.1680 257.7 88.1 - 23 -13 2117 Apr 16 16:32:00 244 1450 P a- -0.8852 1.2139 0.2530 263.7 106.6 - 24 -12 2135 Apr 28 00:26:35 289 1673 P a- -0.8344 1.3051 0.3483 269.9 123.2 - 25 -11 2153 May 08 08:14:39 335 1896 P a- -0.7781 1.4065 0.4535 276.3 138.3 - 26 -10 2171 May 19 15:56:55 374 2119 P a- -0.7166 1.5175 0.5680 282.7 151.9 - 27 -09 2189 May 29 23:34:01 416 2342 P a- -0.6505 1.6375 0.6909 288.8 164.1 - 28 -08 2207 Jun 11 07:07:39 460 2565 P a- -0.5811 1.7634 0.8193 294.5 174.8 - 29 -07 2225 Jun 21 14:38:56 505 2788 P a- -0.5097 1.8936 0.9512 299.7 183.9 - 30 -06 2243 Jul 02 22:07:19 553 3011 T a- -0.4355 2.0292 1.0880 304.3 191.8 43.2 31 -05 2261 Jul 13 05:36:18 603 3234 T p- -0.3617 2.1643 1.2235 308.2 198.1 66.0 32 -04 2279 Jul 24 13:05:07 654 3457 T p- -0.2877 2.3002 1.3593 311.4 203.1 79.9 33 -03 2297 Aug 03 20:37:10 708 3680 T- p- -0.2162 2.4317 1.4901 313.9 206.8 88.9 34 -02 2315 Aug 16 04:10:27 764 3903 T- p- -0.1459 2.5616 1.6185 315.7 209.3 94.7 35 -01 2333 Aug 26 11:49:39 822 4126 T- pp -0.0807 2.6822 1.7372 317.0 210.8 97.9 36 00 2351 Sep 06 19:32:42 883 4349 T- pp -0.0188 2.7969 1.8495 317.7 211.4 99.1 37 01 2369 Sep 17 03:22:09 945 4572 T+ pp 0.0374 2.7643 1.8139 318.1 211.3 98.8 38 02 2387 Sep 28 11:16:56 1009 4795 T+ -p 0.0890 2.6712 1.7176 318.1 210.7 97.3 39 03 2405 Oct 08 19:19:56 1075 5018 T+ -p 0.1336 2.5913 1.6341 318.1 209.7 95.1 40 04 2423 Oct 20 03:29:19 1144 5241 T+ -p 0.1723 2.5221 1.5612 317.9 208.6 92.3
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 2441 Oct 30 11:45:56 1214 5464 T+ -p 0.2048 2.4645 1.4997 317.8 207.4 89.3 42 06 2459 Nov 10 20:09:31 1287 5687 T+ -p 0.2312 2.4179 1.4492 317.7 206.3 86.3 43 07 2477 Nov 21 04:40:34 1361 5910 T+ -p 0.2515 2.3825 1.4101 317.8 205.4 83.8 44 08 2495 Dec 02 13:16:56 1438 6133 T+ -p 0.2671 2.3557 1.3799 318.0 204.8 81.6 45 09 2513 Dec 13 21:58:14 1517 6356 T -p 0.2783 2.3367 1.3576 318.4 204.3 79.8 46 10 2531 Dec 25 06:43:03 1598 6579 T -p 0.2865 2.3231 1.3412 318.8 204.0 78.5 47 11 2550 Jan 04 15:31:00 1681 6802 T -p 0.2921 2.3141 1.3299 319.4 203.9 77.6 48 12 2568 Jan 16 00:18:34 1766 7025 T -p 0.2977 2.3047 1.3185 319.9 203.9 76.7 49 13 2586 Jan 26 09:06:34 1853 7248 T -p 0.3029 2.2960 1.3083 320.5 203.9 75.8 50 14 2604 Feb 07 17:51:11 1942 7471 T -p 0.3106 2.2824 1.2936 320.9 203.7 74.5 51 15 2622 Feb 18 02:32:59 2033 7694 T -p 0.3201 2.2652 1.2758 321.2 203.5 72.8 52 16 2640 Feb 29 11:07:48 2126 7917 T -p 0.3353 2.2376 1.2478 321.3 202.8 69.8 53 17 2658 Mar 11 19:37:41 2222 8140 T -p 0.3539 2.2034 1.2136 321.2 201.9 65.7 54 18 2676 Mar 22 03:59:06 2319 8363 T -a 0.3793 2.1567 1.1670 320.6 200.3 59.1 55 19 2694 Apr 02 12:12:44 2419 8586 T -a 0.4106 2.0993 1.1098 319.7 198.0 49.0 56 20 2712 Apr 13 20:16:52 2520 8809 T -a 0.4490 2.0286 1.0393 318.2 194.7 30.0 57 21 2730 Apr 25 04:13:03 2624 9032 P -a 0.4934 1.9471 0.9579 316.1 190.3 - 58 22 2748 May 05 12:00:09 2730 9255 P -a 0.5449 1.8527 0.8633 313.1 184.3 - 59 23 2766 May 16 19:38:18 2837 9478 P -a 0.6030 1.7462 0.7565 309.1 176.2 - 60 24 2784 May 27 03:08:54 2947 9701 P -a 0.6667 1.6298 0.6392 304.0 165.7 - 61 25 2802 Jun 07 10:32:24 3059 9924 P -a 0.7352 1.5047 0.5129 297.6 151.9 - 62 26 2820 Jun 17 17:49:32 3173 10147 P -a 0.8082 1.3715 0.3781 289.6 133.5 - 63 27 2838 Jun 29 01:01:07 3289 10370 P -a 0.8850 1.2318 0.2362 279.9 108.1 - 64 28 2856 Jul 09 08:09:01 3408 10593 P -a 0.9636 1.0889 0.0906 268.4 68.6 - 65 29 2874 Jul 20 15:14:11 3528 10816 N -a 1.0433 0.9443 -0.0571 254.9 - - 66 30 2892 Jul 30 22:16:27 3650 11039 N -a 1.1241 0.7979 -0.2074 238.9 - - 67 31 2910 Aug 12 05:19:18 3774 11262 N -h 1.2032 0.6549 -0.3546 220.6 - - 68 32 2928 Aug 22 12:22:23 3901 11485 N -h 1.2807 0.5150 -0.4992 199.2 - - 69 33 2946 Sep 02 19:28:48 4029 11708 N -h 1.3545 0.3824 -0.6370 174.6 - - 70 34 2964 Sep 13 02:37:10 4160 11931 N -h 1.4252 0.2553 -0.7696 145.0 - - 71 35 2982 Sep 24 09:51:36 4293 12154 N -h 1.4899 0.1396 -0.8911 108.8 - - 72 36 3000 Oct 05 17:10:38 4427 12377 Ne -h 1.5497 0.0329 -1.0039 53.5 - -
[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)"