EclipseWise - Catalog of Solar Eclipses of Saros 166

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 166

The table below lists the concise characteristics of every solar eclipse belonging to Saros 166 . 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 166
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	-32	2228-Oct-29	00:15:43	309	161	2830	Pb	t-	-1.5410	0.0477	62S	57E	0	-	-
2	-31	2246-Nov-09	07:47:02	346	182	3053	P	t-	-1.5082	0.1037	62S	65W	0	-	-
3	-30	2264-Nov-19	15:28:12	386	205	3276	P	t-	-1.4830	0.1465	63S	171E	0	-	-
4	-29	2282-Nov-30	23:15:22	428	229	3499	P	t-	-1.4624	0.1813	64S	45E	0	-	-
5	-28	2300-Dec-12	07:09:43	472	254	3722	P	t-	-1.4472	0.2068	65S	83W	0	-	-
6	-27	2318-Dec-23	15:07:25	520	279	3945	P	t-	-1.4345	0.2280	66S	148E	0	-	-
7	-26	2337-Jan-02	23:09:43	569	306	4168	P	t-	-1.4251	0.2435	67S	17E	0	-	-
8	-25	2355-Jan-14	07:12:19	622	333	4391	P	t-	-1.4157	0.2589	68S	115W	0	-	-
9	-24	2373-Jan-24	15:14:58	677	362	4614	P	t-	-1.4062	0.2743	69S	113E	0	-	-
10	-23	2391-Feb-04	23:15:05	734	391	4837	P	t-	-1.3944	0.2934	70S	19W	0	-	-
11	-22	2409-Feb-15	07:12:29	794	421	5060	P	t-	-1.3802	0.3164	71S	151W	0	-	-
12	-21	2427-Feb-26	15:03:44	857	452	5283	P	t-	-1.3606	0.3485	72S	78E	0	-	-
13	-20	2445-Mar-08	22:49:33	922	483	5506	P	t-	-1.3360	0.3892	72S	52W	0	-	-
14	-19	2463-Mar-20	06:27:52	990	516	5729	P	t-	-1.3050	0.4411	72S	179E	0	-	-
15	-18	2481-Mar-30	14:00:05	1060	549	5952	P	t-	-1.2684	0.5028	72S	52E	0	-	-
16	-17	2499-Apr-10	21:22:37	1133	584	6175	P	t-	-1.2232	0.5798	72S	72W	0	-	-
17	-16	2517-Apr-22	04:39:27	1209	619	6398	P	t-	-1.1726	0.6670	71S	165E	0	-	-
18	-15	2535-May-03	11:47:35	1287	654	6621	P	t-	-1.1137	0.7692	70S	46E	0	-	-
19	-14	2553-May-13	18:51:19	1367	691	6844	P	t-	-1.0504	0.8801	70S	72W	0	-	-
20	-13	2571-May-25	01:46:58	1450	729	7067	A	t-	-0.9794	0.9520	58S	168E	11	924	04m21s
21	-12	2589-Jun-04	08:40:21	1536	767	7290	A	t-	-0.9054	0.9600	43S	57E	25	345	04m10s
22	-11	2607-Jun-16	15:28:32	1625	806	7513	A	p-	-0.8257	0.9664	33S	48W	34	215	03m47s
23	-10	2625-Jun-26	22:15:41	1716	846	7736	A	p-	-0.7443	0.9720	25S	152W	42	150	03m16s
24	-9	2643-Jul-08	05:00:54	1809	886	7959	A	p-	-0.6602	0.9768	18S	105E	49	109	02m44s
25	-8	2661-Jul-18	11:48:05	1905	927	8182	A	p-	-0.5765	0.9811	13S	3E	55	81	02m12s
26	-7	2679-Jul-29	18:37:03	2004	969	8405	A	p-	-0.4932	0.9846	9S	99W	60	62	01m44s
27	-6	2697-Aug-09	01:29:20	2105	1012	8628	A	p-	-0.4115	0.9877	7S	159E	66	47	01m20s
28	-5	2715-Aug-21	08:26:50	2209	1056	8851	A	p-	-0.3332	0.9901	5S	55E	71	37	01m03s
29	-4	2733-Aug-31	15:30:14	2315	1100	9074	A	n-	-0.2586	0.9920	5S	49W	75	29	00m49s
30	-3	2751-Sep-11	22:41:01	2424	1145	9297	A	n-	-0.1894	0.9934	5S	156W	79	24	00m40s
31	-2	2769-Sep-22	05:59:20	2536	1191	9520	A	nn	-0.1254	0.9944	6S	96E	83	20	00m33s
32	-1	2787-Oct-03	13:27:26	2650	1238	9743	A	nn	-0.0684	0.9950	8S	15W	86	18	00m29s
33	0	2805-Oct-13	21:04:25	2766	1285	9966	A	nn	-0.0180	0.9954	9S	128W	89	16	00m27s
34	1	2823-Oct-25	04:50:54	2886	1333	10189	A	nn	0.0253	0.9957	11S	116E	89	15	00m26s
35	2	2841-Nov-04	12:46:57	3007	1382	10412	A	nn	0.0615	0.9959	12S	2W	87	14	00m25s
36	3	2859-Nov-15	20:52:35	3132	1431	10635	A	nn	0.0902	0.9962	14S	122W	85	13	00m23s
37	4	2877-Nov-26	05:06:23	3259	1482	10858	A	nn	0.1131	0.9967	15S	115E	84	12	00m21s
38	5	2895-Dec-07	13:27:17	3388	1533	11081	A	nn	0.1307	0.9974	15S	9W	83	9	00m17s
39	6	2913-Dec-18	21:55:01	3520	1584	11304	Am	nn	0.1431	0.9985	15S	134W	82	5	00m10s
40	7	2931-Dec-30	06:28:18	3655	1637	11527	A	nn	0.1512	1.0000	14S	99E	81	0	00m00s

Catalog of Solar Eclipses of Saros 166
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	8	2950-Jan-09	15:04:34	3792	1690	11750	H	nn	0.1575	1.0020	13S	29W	81	7	00m13s
42	9	2968-Jan-20	23:43:33	3932	1744	11973	H	nn	0.1619	1.0045	11S	158W	81	16	00m29s
43	10	2986-Jan-31	08:22:32	4074	1799	12196	H	-n	0.1670	1.0075	8S	72E	80	26	00m48s
44	11	3004-Feb-12	17:01:33	4219	1854	12419	H	-n	0.1726	1.0110	4S	57W	80	38	01m09s
45	12	3022-Feb-23	01:36:33	4367	1910	12642	H	-n	0.1818	1.0150	0N	174E	80	52	01m32s
46	13	3040-Mar-05	10:09:33	4517	1967	12865	T	-n	0.1934	1.0194	5N	46E	79	68	01m56s
47	14	3058-Mar-16	18:36:18	4670	2024	13088	T	-n	0.2108	1.0242	10N	81W	78	84	02m21s
48	15	3076-Mar-27	02:58:39	4825	2082	13311	T	-n	0.2324	1.0292	16N	152E	76	102	02m46s
49	16	3094-Apr-07	11:12:59	4983	2141	13534	T	-n	0.2615	1.0344	22N	28E	75	120	03m10s
50	17	3112-Apr-18	19:22:22	5143	2201	13757	T	-n	0.2952	1.0396	28N	94W	73	139	03m32s
51	18	3130-Apr-30	03:23:52	5306	2261	13980	T	-n	0.3362	1.0448	34N	146E	70	158	03m50s
52	19	3148-May-10	11:19:08	5472	2322	14203	T	-n	0.3829	1.0497	40N	28E	67	179	04m05s
53	20	3166-May-21	19:07:34	5640	2384	14426	T	-p	0.4360	1.0542	46N	88W	64	199	04m15s
54	21	3184-Jun-01	02:51:01	5810	2446	14649	T	-p	0.4938	1.0583	52N	160E	60	221	04m21s
55	22	3202-Jun-12	10:29:22	5984	2510	14872	T	-p	0.5563	1.0617	57N	51E	56	245	04m23s
56	23	3220-Jun-22	18:03:20	6160	2573	15095	T	-p	0.6228	1.0645	62N	55W	51	271	04m20s
57	24	3238-Jul-04	01:34:28	6338	2638	15318	T	-p	0.6921	1.0664	65N	157W	46	301	04m15s
58	25	3256-Jul-14	09:04:02	6519	2703	15541	T	-p	0.7632	1.0673	67N	105E	40	341	04m06s
59	26	3274-Jul-25	16:32:12	6702	2769	15764	T	-p	0.8357	1.0672	68N	9E	33	400	03m55s
60	27	3292-Aug-05	00:01:21	6889	2836	15987	T	-t	0.9076	1.0657	68N	84W	24	514	03m39s
61	28	3310-Aug-17	07:31:53	7077	2903	16210	T	-t	0.9786	1.0619	66N	170W	11	1042	03m12s
62	29	3328-Aug-27	15:06:22	7269	2971	16433	P	-t	1.0466	0.9336	62N	92E	0	-	-
63	30	3346-Sep-07	22:43:09	7462	3040	16656	P	-t	1.1129	0.8050	61N	30W	0	-	-
64	31	3364-Sep-18	06:26:02	7659	3109	16879	P	-t	1.1743	0.6858	61N	153W	0	-	-
65	32	3382-Sep-29	14:13:27	7858	3180	17102	P	-t	1.2321	0.5741	61N	82E	0	-	-
66	33	3400-Oct-10	22:08:27	8059	3250	17325	P	-t	1.2838	0.4744	61N	45W	0	-	-
67	34	3418-Oct-22	06:08:48	8264	3322	17548	P	-t	1.3311	0.3837	62N	173W	0	-	-
68	35	3436-Nov-01	14:17:48	8470	3394	17771	P	-t	1.3716	0.3065	62N	57E	0	-	-
69	36	3454-Nov-12	22:33:07	8679	3467	17994	P	-t	1.4068	0.2398	63N	75W	0	-	-
70	37	3472-Nov-23	06:56:05	8891	3541	18217	P	-t	1.4359	0.1853	64N	151E	0	-	-
71	38	3490-Dec-04	15:25:16	9106	3615	18440	P	-t	1.4600	0.1405	65N	15E	0	-	-
72	39	3508-Dec-16	00:01:16	9323	3690	18663	P	-t	1.4784	0.1066	66N	123W	0	-	-
73	40	3526-Dec-27	08:42:08	9542	3765	18886	P	-t	1.4932	0.0798	67N	97E	0	-	-
74	41	3545-Jan-06	17:26:42	9765	3842	19109	P	-t	1.5049	0.0586	68N	44W	0	-	-
75	42	3563-Jan-18	02:14:39	9989	3919	19332	P	-t	1.5140	0.0424	69N	174E	0	-	-
76	43	3581-Jan-28	11:04:25	10217	3997	19555	P	-t	1.5213	0.0293	70N	31E	0	-	-
77	44	3599-Feb-08	19:53:56	10446	4075	19778	Pe	-t	1.5292	0.0150	71N	113W	0	-	-

Statistics for Solar Eclipses of Saros 166

Solar eclipses of Saros 166 all occur at the Moon’s descending node and the Moon moves northward with each eclipse. The series will begin with a partial eclipse in the southern hemisphere on 2228 Oct 29. The series will end with a partial eclipse in the northern hemisphere on 3599 Feb 08. The total duration of Saros series 166 is 1370.29 years.

Summary of Saros 166

First Eclipse	2228 Oct 29
Last Eclipse	3599 Feb 08
Series Duration	1370.29 Years
No. of Eclipses	77
Sequence	19P 21A 5H 16T 16P

Saros 166 is composed of 77 solar eclipses as follows:

Solar Eclipses of Saros 166
Eclipse Type	Symbol	Number	Percent
All Eclipses	-	77	100.0%
Partial	P	35	45.5%
Annular	A	21	27.3%
Total	T	16	20.8%
Hybrid	H	5	6.5%

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 166 appears in the following table.

Umbral Eclipses of Saros 166
Classification	Number	Percent
All Umbral Eclipses	42	100.0%
Central (two limits)	42	100.0%
Central (one limit)	0	0.0%
Non-Central (one limit)	0	0.0%

The 77 eclipses in Saros 166 occur in the following order : 19P 21A 5H 16T 16P

The longest and shortest central eclipses of Saros 166 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Solar Eclipses of Saros 166
Extrema Type	Date	Duration	Magnitude
Longest Annular Solar Eclipse	2571 May 25	04m21s	-
Shortest Annular Solar Eclipse	2931 Dec 30	00m00s	-
Longest Total Solar Eclipse	3202 Jun 12	04m23s	-
Shortest Total Solar Eclipse	3040 Mar 05	01m56s	-
Longest Hybrid Solar Eclipse	3022 Feb 23	01m32s	-
Shortest Hybrid Solar Eclipse	2950 Jan 09	00m13s	-
Largest Partial Solar Eclipse	3328 Aug 27	-	0.93362
Smallest Partial Solar Eclipse	3599 Feb 08	-	0.01502

Panorama of Solar Eclipses of Saros 166

Catalog of Saros Series of Solar Eclipses

Links to Additional Solar Eclipse Predictions

Home - home page of EclipseWise with predictions for both solar and lunar eclipses

Solar Eclipses - primary page for solar eclipse predictions
Solar Eclipse Links - detailed directory of links
Solar Eclipse Basics - a primer on solar eclipses

Catalog of Solar Eclipse Saros Series - covers Saros series -30 through 190
Six Millennium Catalog of Solar Eclipses - from -2999 to +3000 (3000 BCE to 3000 CE)
World Atlas of Solar Eclipse Maps - index page for world eclipse maps covering 5 millennia
Javascript Solar Eclipse Explorer - calculate all solar eclipses visible from a city

Thousand Year Canon of Solar Eclipses 1501 to 2500 - link to the publication

MrEclipse.com - eclipse resources and tips on photography
Solar Eclipses for Beginners - a primer on solar eclipse basics
How to Photograph a Solar Eclipse - instructions for imaging an eclipse of the Sun
MrEclipse Photo Index - an index of solar eclipse photographs

Eclipse Publications

by Fred Espenak

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:

pre-1950's: ΔT calculated from empirical fits to historical records derived by Morrison and Stephenson (2004)
1955-present: ΔT obtained from published observations
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.