Path of the Total Solar Eclipse of 1781 Oct 17

Fred Espenak

Introduction

The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of 1781 Oct 17 . The geographic coordinates (WGS 84) of the northern and southern limits and the central line are listed at 120-second intervals. This provides adequate detail for making plots of the path on larger scale maps. Local circumstances on the central line include the ratio of the apparent diameters of the Moon to the Sun, the Sun's altitude and azimuth (degrees), the path width (kilometers) and the duration on the central line (minutes and seconds). See the Explanation of the Central Eclipse Path Table for a description of each column in the table.

The geographic visibility of the eclipse is shown on a global map on the Prime Page for the Eclipse which also includes complete details on the eclipse. The path of the eclipse is displayed in greater detail on an interactive Google Map .

Total Solar Eclipse of 1781 Oct 17
UT1 Northern Limit Southern Limit Central Line M:S Sun Sun Path Central
Latitude Longitude Latitude Longitude Latitude Longitude Ratio Alt. Azm. Width Duration
Limits33°19.0'N015°46.4'W32°06.0'N016°02.6'W32°42.5'N015°54.4'W 1.041 - 137 km 02m13.4s
07:1432°05.4'N009°21.1'W30°49.1'N009°37.9'W31°26.6'N009°26.3'W 1.043 105° 143 km 02m24.6s
07:1630°10.6'N001°53.9'W28°56.1'N002°32.1'W29°33.0'N002°11.6'W 1.045 13° 109° 150 km 02m39.1s
07:1828°48.6'N002°21.7'E27°34.4'N001°36.4'E28°11.1'N002°00.0'E 1.046 17° 111° 155 km 02m48.6s
07:2027°37.7'N005°33.9'E26°23.8'N004°44.1'E27°00.4'N005°09.8'E 1.048 20° 113° 158 km 02m56.4s
07:2226°33.3'N008°11.3'E25°19.6'N007°18.2'E25°56.2'N007°45.4'E 1.048 23° 114° 161 km 03m03.3s
07:2425°33.3'N010°25.8'E24°19.8'N009°30.0'E24°56.2'N009°58.4'E 1.049 26° 115° 164 km 03m09.4s
07:2624°36.5'N012°23.8'E23°23.2'N011°25.8'E23°59.6'N011°55.3'E 1.050 28° 116° 166 km 03m15.1s
07:2823°42.2'N014°09.4'E22°29.1'N013°09.5'E23°05.4'N013°39.9'E 1.051 31° 117° 168 km 03m20.4s
07:3022°50.1'N015°45.1'E21°37.2'N014°43.5'E22°13.4'N015°14.7'E 1.051 33° 118° 170 km 03m25.4s
07:3221°59.6'N017°12.7'E20°46.9'N016°09.7'E21°23.1'N016°41.5'E 1.052 35° 119° 172 km 03m30.1s
07:3421°10.7'N018°33.6'E19°58.2'N017°29.3'E20°34.2'N018°01.8'E 1.052 37° 120° 173 km 03m34.6s
07:3620°23.1'N019°48.8'E19°10.8'N018°43.3'E19°46.8'N019°16.4'E 1.053 39° 121° 175 km 03m38.9s
07:3819°36.7'N020°59.2'E18°24.6'N019°52.6'E19°00.4'N020°26.2'E 1.053 40° 121° 176 km 03m43.0s
07:4018°51.3'N022°05.2'E17°39.3'N020°57.8'E18°15.1'N021°31.8'E 1.053 42° 122° 178 km 03m46.9s
07:4218°06.9'N023°07.6'E16°55.0'N021°59.3'E17°30.8'N022°33.7'E 1.054 44° 123° 179 km 03m50.7s
07:4417°23.3'N024°06.7'E16°11.6'N022°57.6'E16°47.3'N023°32.3'E 1.054 45° 123° 180 km 03m54.4s
07:4616°40.5'N025°02.8'E15°28.9'N023°53.0'E16°04.5'N024°28.1'E 1.055 47° 124° 181 km 03m57.9s
07:4815°58.5'N025°56.4'E14°47.0'N024°45.9'E15°22.5'N025°21.3'E 1.055 48° 124° 182 km 04m01.3s
07:5015°17.1'N026°47.6'E14°05.7'N025°36.4'E14°41.2'N026°12.2'E 1.055 50° 125° 183 km 04m04.5s
07:5214°36.3'N027°36.6'E13°25.1'N026°24.9'E14°00.5'N027°00.9'E 1.056 51° 125° 184 km 04m07.7s
07:5413°56.1'N028°23.7'E12°45.0'N027°11.5'E13°20.4'N027°47.8'E 1.056 52° 126° 185 km 04m10.7s
07:5613°16.5'N029°09.1'E12°05.4'N027°56.4'E12°40.8'N028°32.9'E 1.056 54° 126° 186 km 04m13.6s
07:5812°37.4'N029°52.9'E11°26.4'N028°39.8'E12°01.7'N029°16.5'E 1.056 55° 127° 186 km 04m16.4s
08:0011°58.8'N030°35.3'E10°47.8'N029°21.7'E11°23.2'N029°58.6'E 1.057 57° 127° 187 km 04m19.2s
08:0211°20.6'N031°16.3'E10°09.7'N030°02.4'E10°45.0'N030°39.5'E 1.057 58° 128° 188 km 04m21.8s
08:0410°42.9'N031°56.1'E09°32.0'N030°41.8'E10°07.3'N031°19.1'E 1.057 59° 129° 188 km 04m24.3s
08:0610°05.7'N032°34.7'E08°54.7'N031°20.2'E09°30.1'N031°57.6'E 1.057 60° 129° 189 km 04m26.7s
08:0809°28.8'N033°12.4'E08°17.9'N031°57.6'E08°53.2'N032°35.1'E 1.057 62° 130° 189 km 04m29.1s
08:1008°52.3'N033°49.1'E07°41.3'N032°34.0'E08°16.7'N033°11.7'E 1.058 63° 130° 190 km 04m31.3s
08:1208°16.1'N034°25.0'E07°05.2'N033°09.6'E07°40.5'N033°47.4'E 1.058 64° 131° 191 km 04m33.5s
08:1407°40.3'N035°00.1'E06°29.3'N033°44.5'E07°04.7'N034°22.4'E 1.058 65° 132° 191 km 04m35.5s
08:1607°04.9'N035°34.4'E05°53.8'N034°18.7'E06°29.2'N034°56.7'E 1.058 66° 132° 191 km 04m37.5s
08:1806°29.8'N036°08.1'E05°18.6'N034°52.2'E05°54.1'N035°30.3'E 1.058 68° 133° 192 km 04m39.4s
08:2005°55.0'N036°41.3'E04°43.8'N035°25.2'E05°19.2'N036°03.3'E 1.058 69° 134° 192 km 04m41.2s
08:2205°20.5'N037°13.8'E04°09.2'N035°57.6'E04°44.7'N036°35.8'E 1.059 70° 135° 193 km 04m42.9s
08:2404°46.3'N037°45.9'E03°34.8'N036°29.6'E04°10.4'N037°07.8'E 1.059 71° 136° 193 km 04m44.6s
08:2604°12.3'N038°17.5'E03°00.8'N037°01.1'E03°36.4'N037°39.4'E 1.059 72° 137° 193 km 04m46.1s
08:2803°38.7'N038°48.8'E02°27.0'N037°32.3'E03°02.7'N038°10.6'E 1.059 73° 138° 194 km 04m47.6s
08:3003°05.3'N039°19.6'E01°53.4'N038°03.1'E02°29.3'N038°41.4'E 1.059 74° 140° 194 km 04m49.0s
08:3202°32.2'N039°50.2'E01°20.2'N038°33.6'E01°56.1'N039°12.0'E 1.059 75° 141° 194 km 04m50.2s
08:3401°59.3'N040°20.5'E00°47.1'N039°03.9'E01°23.1'N039°42.3'E 1.059 76° 143° 195 km 04m51.5s
08:3601°26.7'N040°50.6'E00°14.3'N039°34.0'E00°50.4'N040°12.3'E 1.059 77° 146° 195 km 04m52.6s
08:3800°54.3'N041°20.5'E00°18.3'S040°03.8'E00°17.9'N040°42.2'E 1.059 78° 148° 195 km 04m53.6s
08:4000°22.1'N041°50.2'E00°50.7'S040°33.6'E00°14.4'S041°11.9'E 1.059 79° 151° 195 km 04m54.6s
08:4200°09.8'S042°19.8'E01°22.8'S041°03.2'E00°46.4'S041°41.6'E 1.059 80° 155° 196 km 04m55.4s
08:4400°41.5'S042°49.3'E01°54.8'S041°32.8'E01°18.2'S042°11.1'E 1.059 81° 159° 196 km 04m56.2s
08:4601°13.0'S043°18.7'E02°26.5'S042°02.3'E01°49.8'S042°40.6'E 1.060 82° 164° 196 km 04m56.9s
08:4801°44.2'S043°48.1'E02°58.1'S042°31.8'E02°21.2'S043°10.0'E 1.060 83° 171° 196 km 04m57.5s
08:5002°15.3'S044°17.6'E03°29.4'S043°01.4'E02°52.4'S043°39.5'E 1.060 83° 178° 196 km 04m58.0s
08:5202°46.1'S044°47.0'E04°00.5'S043°31.0'E03°23.4'S044°09.1'E 1.060 84° 188° 197 km 04m58.4s
08:5403°16.8'S045°16.6'E04°31.4'S044°00.7'E03°54.2'S044°38.7'E 1.060 84° 198° 197 km 04m58.7s
08:5603°47.2'S045°46.2'E05°02.2'S044°30.5'E04°24.7'S045°08.4'E 1.060 84° 209° 197 km 04m59.0s
08:5804°17.4'S046°16.0'E05°32.7'S045°00.5'E04°55.1'S045°38.3'E 1.060 84° 220° 197 km 04m59.1s
09:0004°47.4'S046°46.0'E06°03.1'S045°30.6'E05°25.3'S046°08.3'E 1.060 84° 229° 197 km 04m59.2s
09:0205°17.2'S047°16.1'E06°33.3'S046°01.0'E05°55.3'S046°38.6'E 1.060 83° 238° 197 km 04m59.2s
09:0405°46.9'S047°46.5'E07°03.3'S046°31.6'E06°25.1'S047°09.1'E 1.060 83° 245° 197 km 04m59.1s
09:0606°16.3'S048°17.1'E07°33.1'S047°02.6'E06°54.7'S047°39.9'E 1.060 82° 251° 197 km 04m58.8s
09:0806°45.5'S048°48.1'E08°02.7'S047°33.8'E07°24.1'S048°11.0'E 1.059 81° 256° 197 km 04m58.5s
09:1007°14.6'S049°19.3'E08°32.1'S048°05.4'E07°53.4'S048°42.4'E 1.059 80° 260° 197 km 04m58.1s
09:1207°43.4'S049°51.0'E09°01.3'S048°37.3'E08°22.4'S049°14.2'E 1.059 79° 263° 197 km 04m57.6s
09:1408°12.0'S050°23.0'E09°30.4'S049°09.7'E08°51.2'S049°46.4'E 1.059 78° 266° 197 km 04m57.0s
09:1608°40.5'S050°55.5'E09°59.2'S049°42.6'E09°19.9'S050°19.0'E 1.059 77° 268° 197 km 04m56.3s
09:1809°08.7'S051°28.4'E10°27.9'S050°15.9'E09°48.3'S050°52.2'E 1.059 76° 270° 197 km 04m55.5s
09:2009°36.8'S052°01.8'E10°56.3'S050°49.8'E10°16.6'S051°25.8'E 1.059 75° 272° 197 km 04m54.6s
09:2210°04.6'S052°35.8'E11°24.6'S051°24.3'E10°44.6'S052°00.0'E 1.059 74° 273° 197 km 04m53.6s
09:2410°32.3'S053°10.4'E11°52.7'S051°59.4'E11°12.5'S052°34.9'E 1.059 73° 274° 197 km 04m52.5s
09:2610°59.7'S053°45.6'E12°20.5'S052°35.1'E11°40.1'S053°10.3'E 1.059 72° 275° 196 km 04m51.3s
09:2811°26.9'S054°21.5'E12°48.2'S053°11.5'E12°07.6'S053°46.5'E 1.059 71° 276° 196 km 04m50.0s
09:3011°53.9'S054°58.1'E13°15.6'S053°48.7'E12°34.8'S054°23.4'E 1.059 70° 277° 196 km 04m48.6s
09:3212°20.7'S055°35.5'E13°42.8'S054°26.8'E13°01.8'S055°01.1'E 1.058 68° 277° 196 km 04m47.1s
09:3412°47.3'S056°13.7'E14°09.8'S055°05.6'E13°28.5'S055°39.6'E 1.058 67° 278° 195 km 04m45.5s
09:3613°13.6'S056°52.8'E14°36.6'S055°45.4'E13°55.1'S056°19.1'E 1.058 66° 278° 195 km 04m43.7s
09:3813°39.7'S057°32.8'E15°03.1'S056°26.2'E14°21.4'S056°59.5'E 1.058 65° 278° 194 km 04m41.9s
09:4014°05.5'S058°13.8'E15°29.4'S057°08.0'E14°47.4'S057°40.9'E 1.058 64° 279° 194 km 04m39.9s
09:4214°31.1'S058°56.0'E15°55.4'S057°51.0'E15°13.2'S058°23.4'E 1.058 62° 279° 193 km 04m37.9s
09:4414°56.5'S059°39.2'E16°21.2'S058°35.1'E15°38.8'S059°07.1'E 1.057 61° 279° 193 km 04m35.7s
09:4615°21.5'S060°23.7'E16°46.6'S059°20.5'E16°04.0'S059°52.0'E 1.057 60° 279° 192 km 04m33.4s
09:4815°46.3'S061°09.5'E17°11.8'S060°07.2'E16°29.0'S060°38.3'E 1.057 59° 279° 192 km 04m30.9s
09:5016°10.8'S061°56.7'E17°36.6'S060°55.5'E16°53.7'S061°26.0'E 1.057 57° 279° 191 km 04m28.4s
09:5216°34.9'S062°45.5'E18°01.2'S061°45.2'E17°18.0'S062°15.2'E 1.056 56° 279° 190 km 04m25.7s
09:5416°58.8'S063°35.8'E18°25.4'S062°36.7'E17°42.0'S063°06.1'E 1.056 55° 279° 189 km 04m22.9s
09:5617°22.2'S064°27.9'E18°49.2'S063°29.9'E18°05.6'S063°58.7'E 1.056 53° 279° 189 km 04m20.0s
09:5817°45.3'S065°21.9'E19°12.6'S064°25.1'E18°28.9'S064°53.3'E 1.056 52° 278° 188 km 04m17.0s
10:0018°08.0'S066°17.9'E19°35.6'S065°22.4'E18°51.7'S065°49.9'E 1.055 51° 278° 187 km 04m13.8s
10:0218°30.3'S067°16.1'E19°58.1'S066°21.9'E19°14.1'S066°48.8'E 1.055 49° 278° 186 km 04m10.5s
10:0418°52.1'S068°16.7'E20°20.2'S067°23.9'E19°36.1'S067°50.1'E 1.055 48° 278° 184 km 04m07.0s
10:0619°13.4'S069°20.0'E20°41.7'S068°28.6'E19°57.5'S068°54.1'E 1.054 46° 277° 183 km 04m03.4s
10:0819°34.2'S070°26.1'E21°02.7'S069°36.3'E20°18.4'S070°00.9'E 1.054 45° 277° 182 km 03m59.7s
10:1019°54.4'S071°35.4'E21°23.0'S070°47.2'E20°38.6'S071°11.0'E 1.054 43° 276° 181 km 03m55.7s
10:1220°13.9'S072°48.3'E21°42.7'S072°01.8'E20°58.2'S072°24.7'E 1.053 41° 276° 179 km 03m51.7s
10:1420°32.7'S074°05.1'E22°01.5'S073°20.3'E21°17.1'S073°42.4'E 1.053 40° 275° 178 km 03m47.4s
10:1620°50.7'S075°26.4'E22°19.5'S074°43.5'E21°35.1'S075°04.5'E 1.052 38° 275° 176 km 03m42.9s
10:1821°07.8'S076°52.8'E22°36.6'S076°11.8'E21°52.1'S076°31.8'E 1.052 36° 274° 174 km 03m38.2s
10:2021°23.8'S078°25.0'E22°52.4'S077°46.0'E22°08.1'S078°05.0'E 1.051 34° 274° 173 km 03m33.3s
10:2221°38.6'S080°04.1'E23°07.0'S079°27.2'E22°22.7'S079°45.1'E 1.051 32° 273° 171 km 03m28.2s
10:2421°51.9'S081°51.4'E23°20.1'S081°16.7'E22°35.9'S081°33.5'E 1.050 30° 272° 169 km 03m22.7s
10:2622°03.5'S083°48.6'E23°31.2'S083°16.3'E22°47.3'S083°31.8'E 1.050 28° 271° 166 km 03m16.9s
10:2822°12.8'S085°58.5'E23°40.0'S085°28.6'E22°56.4'S085°42.8'E 1.049 25° 270° 164 km 03m10.6s
10:3022°19.3'S088°24.9'E23°45.7'S087°57.6'E23°02.5'S088°10.4'E 1.048 23° 269° 161 km 03m03.8s
10:3222°21.7'S091°14.6'E23°47.2'S090°50.0'E23°04.4'S091°01.4'E 1.047 20° 268° 158 km 02m56.3s
10:3422°17.8'S094°40.9'E23°42.1'S094°18.9'E23°00.0'S094°28.8'E 1.046 16° 266° 154 km 02m47.6s
10:3622°01.9'S099°18.4'E23°24.4'S098°58.2'E22°43.3'S099°06.7'E 1.045 11° 264° 149 km 02m36.7s
Limits20°39.7'S110°27.6'E21°53.0'S110°40.9'E21°16.4'S110°34.1'E 1.041 - 137 km 02m13.2s

ΔT = 16.7 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse08:55:58.208:55:41.504°20.1'S044°59.7'E 84.2° 207.1° 196.8 km04m58.96s
Greatest Duration09:00:37.909:00:21.305°30.6'S046°13.7'E 83.7° 231.1° 197.1 km04m59.21s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Total Solar Eclipse of 1781 Oct 17

Links to Additional Solar Eclipse Predictions

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

Predictions for the Total Solar Eclipse of 1781 Oct 17 were generated using the JPL DE406 solar and lunar ephemerides. The lunar coordinates were calculated with respect to the Moon's Center of Mass. Although the predictions are first calculated in Terrestrial Dynamical Time (TD), they are then converted to Universal Time (UT1) as presented here. The parameter ΔT is used to convert between the two times (i.e., UT1 = TD - ΔT). ΔT has a value of 16.7 seconds for this eclipse. The uncertainty in ΔT is 1.7 seconds corresponding to a standard error in longitude of the eclipse path of ± 0.01°.

Acknowledgments

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, EclipseWise.com"

The use of diagrams and maps is permitted provided that they are unaltered (except for re-sizing) and the embedded credit line is not removed or covered.