EclipseWise - Catalog of Solar Eclipses of Saros 170

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 170

The table below lists the concise characteristics of every solar eclipse belonging to Saros 170 . 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 170
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	-35	2344-Aug-09	11:59:04	591	317	4262	Pb	t-	-1.4974	0.0789	62S	53W	0	-	-
2	-34	2362-Aug-20	19:18:10	645	345	4485	P	t-	-1.4239	0.2149	62S	172W	0	-	-
3	-33	2380-Aug-31	02:44:38	701	374	4708	P	t-	-1.3552	0.3423	61S	68E	0	-	-
4	-32	2398-Sep-11	10:16:33	759	403	4931	P	t-	-1.2902	0.4633	61S	53W	0	-	-
5	-31	2416-Sep-21	17:57:50	820	434	5154	P	t-	-1.2320	0.5716	61S	177W	0	-	-
6	-30	2434-Oct-03	01:46:02	884	465	5377	P	t-	-1.1789	0.6706	61S	57E	0	-	-
7	-29	2452-Oct-13	09:44:04	950	497	5600	P	t-	-1.1333	0.7554	61S	71W	0	-	-
8	-28	2470-Oct-24	17:49:28	1019	530	5823	P	t-	-1.0932	0.8299	62S	160E	0	-	-
9	-27	2488-Nov-04	02:04:55	1091	564	6046	P	t-	-1.0608	0.8899	62S	27E	0	-	-
10	-26	2506-Nov-16	10:27:36	1165	598	6269	P	t-	-1.0340	0.9397	63S	107W	0	-	-
11	-25	2524-Nov-26	18:58:07	1241	634	6492	P	t-	-1.0134	0.9779	64S	116E	0	-	-
12	-24	2542-Dec-08	03:34:59	1320	670	6715	T-	t-	-0.9975	1.0074	65S	22W	0	-	-
13	-23	2560-Dec-18	12:17:52	1402	707	6938	T	t-	-0.9867	1.0185	74S	155W	8	443	00m55s
14	-22	2578-Dec-29	21:04:02	1486	745	7161	T	t-	-0.9780	1.0201	78S	60E	11	357	01m02s
15	-21	2597-Jan-09	05:52:31	1573	783	7384	T	t-	-0.9712	1.0219	81S	96W	13	333	01m08s
16	-20	2615-Jan-21	14:42:00	1663	822	7607	T	t-	-0.9651	1.0241	82S	98E	15	328	01m17s
17	-19	2633-Jan-31	23:31:22	1755	863	7830	T	t-	-0.9591	1.0266	80S	66W	16	332	01m27s
18	-18	2651-Feb-12	08:17:25	1849	903	8053	T	t-	-0.9502	1.0298	77S	139E	18	332	01m41s
19	-17	2669-Feb-22	17:00:36	1946	945	8276	T	p-	-0.9389	1.0333	72S	8W	20	333	01m58s
20	-16	2687-Mar-06	01:38:10	2046	987	8499	T	p-	-0.9229	1.0374	67S	150W	22	330	02m19s
21	-15	2705-Mar-17	10:10:55	2148	1031	8722	T	p-	-0.9030	1.0419	61S	73E	25	327	02m44s
22	-14	2723-Mar-28	18:35:40	2253	1074	8945	T	p-	-0.8765	1.0465	55S	61W	28	321	03m13s
23	-13	2741-Apr-08	02:54:47	2361	1119	9168	T	p-	-0.8453	1.0513	48S	168E	32	317	03m46s
24	-12	2759-Apr-19	11:05:47	2471	1165	9391	T	p-	-0.8070	1.0560	41S	40E	36	311	04m22s
25	-11	2777-Apr-29	19:10:06	2583	1211	9614	T	p-	-0.7631	1.0607	34S	86W	40	307	05m00s
26	-10	2795-May-11	03:06:43	2699	1258	9837	T	p-	-0.7125	1.0649	27S	152E	44	302	05m37s
27	-9	2813-May-21	10:57:34	2816	1305	10060	T	p-	-0.6570	1.0688	21S	31E	49	297	06m11s
28	-8	2831-Jun-01	18:42:30	2937	1354	10283	T	p-	-0.5963	1.0720	15S	87W	53	292	06m39s
29	-7	2849-Jun-12	02:21:51	3059	1403	10506	T	p-	-0.5309	1.0747	9S	156E	58	286	07m00s
30	-6	2867-Jun-23	09:57:31	3185	1453	10729	T	p-	-0.4621	1.0766	4S	42E	62	279	07m10s
31	-5	2885-Jul-03	17:29:50	3313	1503	10952	T	n-	-0.3904	1.0777	0N	71W	67	272	07m11s
32	-4	2903-Jul-16	01:00:40	3444	1554	11175	T	n-	-0.3176	1.0780	3N	176E	72	265	07m04s
33	-3	2921-Jul-26	08:29:24	3577	1606	11398	T	n-	-0.2433	1.0775	6N	65E	76	258	06m50s
34	-2	2939-Aug-06	15:59:22	3712	1659	11621	T	n-	-0.1701	1.0761	7N	46W	80	250	06m33s
35	-1	2957-Aug-16	23:30:06	3851	1713	11844	T	nn	-0.0977	1.0739	8N	157W	84	241	06m13s
36	0	2975-Aug-28	07:03:27	3992	1767	12067	Tm	nn	-0.0278	1.0709	8N	91E	88	231	05m53s
37	1	2993-Sep-07	14:40:07	4135	1822	12290	T	nn	0.0388	1.0673	7N	22W	88	220	05m33s
38	2	3011-Sep-19	22:21:56	4281	1877	12513	T	nn	0.1007	1.0631	6N	136W	84	208	05m13s
39	3	3029-Sep-30	06:09:29	4430	1934	12736	T	-n	0.1576	1.0585	5N	108E	81	195	04m54s
40	4	3047-Oct-11	14:02:23	4581	1991	12959	T	-n	0.2095	1.0534	4N	9W	78	180	04m34s

Catalog of Solar Eclipses of Saros 170
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	5	3065-Oct-21	22:02:22	4735	2049	13182	T	-n	0.2551	1.0482	2N	128W	75	165	04m14s
42	6	3083-Nov-02	06:09:12	4891	2107	13405	T	-n	0.2945	1.0428	1N	111E	73	149	03m53s
43	7	3101-Nov-13	14:23:03	5050	2166	13628	T	-n	0.3277	1.0375	0N	12W	71	133	03m32s
44	8	3119-Nov-24	22:43:23	5212	2226	13851	T	-n	0.3549	1.0323	0S	137W	69	116	03m09s
45	9	3137-Dec-05	07:09:58	5376	2287	14074	T	-n	0.3766	1.0274	1S	97E	68	100	02m46s
46	10	3155-Dec-16	15:42:29	5542	2348	14297	T	-n	0.3928	1.0228	0S	31W	67	84	02m22s
47	11	3173-Dec-27	00:18:20	5711	2410	14520	T	-n	0.4055	1.0186	1N	160W	66	70	01m58s
48	12	3192-Jan-07	08:58:24	5883	2473	14743	H	-n	0.4143	1.0149	2N	70E	66	56	01m36s
49	13	3210-Jan-17	17:39:23	6058	2536	14966	H	-p	0.4215	1.0117	4N	60W	65	45	01m15s
50	14	3228-Jan-29	02:21:31	6234	2601	15189	H	-p	0.4274	1.0091	7N	169E	65	35	00m58s
51	15	3246-Feb-08	11:00:34	6414	2665	15412	H	-p	0.4353	1.0069	10N	39E	64	26	00m43s
52	16	3264-Feb-19	19:38:31	6596	2731	15635	H	-p	0.4434	1.0051	14N	91W	64	20	00m32s
53	17	3282-Mar-02	04:11:12	6781	2797	15858	H	-p	0.4552	1.0038	19N	140E	63	15	00m23s
54	18	3300-Mar-13	12:38:40	6968	2864	16081	H	-p	0.4709	1.0028	24N	12E	62	11	00m17s
55	19	3318-Mar-24	20:58:24	7158	2932	16304	H	-p	0.4925	1.0020	30N	113W	60	8	00m11s
56	20	3336-Apr-04	05:11:25	7350	3000	16527	H	-p	0.5193	1.0014	36N	123E	59	6	00m08s
57	21	3354-Apr-15	13:15:23	7545	3069	16750	H	-p	0.5529	1.0008	42N	1E	56	3	00m04s
58	22	3372-Apr-25	21:10:29	7742	3139	16973	H	-p	0.5931	1.0000	49N	118W	53	0	00m00s
59	23	3390-May-07	04:56:19	7942	3209	17196	A	-p	0.6405	0.9991	56N	126E	50	4	00m05s
60	24	3408-May-18	12:33:51	8145	3280	17419	A	-p	0.6941	0.9978	63N	14E	46	11	00m10s
61	25	3426-May-29	20:01:23	8350	3352	17642	A	-p	0.7552	0.9960	71N	93W	41	22	00m17s
62	26	3444-Jun-09	03:21:27	8558	3425	17865	A	-p	0.8215	0.9935	78N	171E	34	40	00m26s
63	27	3462-Jun-20	10:33:25	8769	3498	18088	A	-t	0.8936	0.9901	84N	118E	26	79	00m37s
64	28	3480-Jun-30	17:40:08	8981	3572	18311	A	-t	0.9689	0.9850	77N	86E	14	226	00m52s
65	29	3498-Jul-12	00:39:32	9197	3646	18534	P	-t	1.0492	0.8964	64N	4W	0	-	-
66	30	3516-Jul-23	07:36:30	9415	3722	18757	P	-t	1.1304	0.7504	63N	117W	0	-	-
67	31	3534-Aug-03	14:29:18	9636	3798	18980	P	-t	1.2140	0.6006	63N	132E	0	-	-
68	32	3552-Aug-13	21:22:12	9859	3874	19203	P	-t	1.2961	0.4545	62N	20E	0	-	-
69	33	3570-Aug-25	04:12:48	10085	3952	19426	P	-t	1.3789	0.3082	62N	90W	0	-	-
70	34	3588-Sep-04	11:06:51	10313	4030	19649	P	-t	1.4579	0.1700	61N	159E	0	-	-
71	35	3606-Sep-15	18:02:05	10544	4108	19872	Pe	-t	1.5349	0.0366	61N	47E	0	-	-

Statistics for Solar Eclipses of Saros 170

Solar eclipses of Saros 170 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 2344 Aug 09. The series will end with a partial eclipse in the northern hemisphere on 3606 Sep 15. The total duration of Saros series 170 is 1262.11 years.

Summary of Saros 170

First Eclipse	2344 Aug 09
Last Eclipse	3606 Sep 15
Series Duration	1262.11 Years
No. of Eclipses	71
Sequence	11P 36T 11H 6A 7P

Saros 170 is composed of 71 solar eclipses as follows:

Solar Eclipses of Saros 170
Eclipse Type	Symbol	Number	Percent
All Eclipses	-	71	100.0%
Partial	P	18	25.4%
Annular	A	6	8.5%
Total	T	36	50.7%
Hybrid	H	11	15.5%

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 170 appears in the following table.

Umbral Eclipses of Saros 170
Classification	Number	Percent
All Umbral Eclipses	53	100.0%
Central (two limits)	52	98.1%
Central (one limit)	0	0.0%
Non-Central (one limit)	1	1.9%

The 71 eclipses in Saros 170 occur in the following order : 11P 36T 11H 6A 7P

The longest and shortest central eclipses of Saros 170 as well as largest and smallest partial eclipses appear below.

Extreme Durations and Magnitudes of Solar Eclipses of Saros 170
Extrema Type	Date	Duration	Magnitude
Longest Annular Solar Eclipse	3480 Jun 30	00m52s	-
Shortest Annular Solar Eclipse	3390 May 07	00m05s	-
Longest Total Solar Eclipse	2885 Jul 03	07m11s	-
Shortest Total Solar Eclipse	2560 Dec 18	00m55s	-
Longest Hybrid Solar Eclipse	3192 Jan 07	01m36s	-
Shortest Hybrid Solar Eclipse	3372 Apr 25	00m00s	-
Largest Partial Solar Eclipse	2524 Nov 26	-	0.97785
Smallest Partial Solar Eclipse	3606 Sep 15	-	0.03656

Panorama of Solar Eclipses of Saros 170

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.