Path of the Total Solar Eclipse of 1780 Oct 27

Fred Espenak

Introduction

The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of 1780 Oct 27 . 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 1780 Oct 27
UT1 Northern Limit Southern Limit Central Line M:S Sun Sun Path Central
Latitude Longitude Latitude Longitude Latitude Longitude Ratio Alt. Azm. Width Duration
Limits73°23.7'N106°37.6'W72°55.8'N108°24.1'W73°09.8'N107°31.9'W 1.014 - 77 km 00m53.4s
16:1869°02.9'N096°49.5'W66°03.6'N093°55.5'W67°26.1'N095°06.2'W 1.017 154° 86 km 01m04.8s
16:2065°17.8'N090°22.8'W63°08.9'N089°23.2'W64°11.3'N089°49.3'W 1.018 11° 159° 91 km 01m11.5s
16:2262°45.9'N086°40.2'W60°55.3'N086°17.6'W61°49.5'N086°27.3'W 1.019 14° 163° 94 km 01m16.5s
16:2460°43.3'N083°56.8'W59°02.9'N083°53.3'W59°52.3'N083°54.2'W 1.019 16° 166° 97 km 01m20.6s
16:2658°57.7'N081°45.5'W57°24.1'N081°53.9'W58°10.3'N081°49.2'W 1.020 18° 168° 100 km 01m24.3s
16:2857°23.7'N079°54.7'W55°55.1'N080°11.3'W56°38.9'N080°02.7'W 1.020 20° 171° 102 km 01m27.5s
16:3055°58.2'N078°18.1'W54°33.4'N078°40.7'W55°15.4'N078°29.2'W 1.021 21° 173° 104 km 01m30.5s
16:3254°39.3'N076°52.1'W53°17.6'N077°19.3'W53°58.1'N077°05.6'W 1.021 23° 175° 106 km 01m33.2s
16:3453°25.8'N075°34.2'W52°06.6'N076°05.1'W52°45.9'N075°49.6'W 1.021 24° 176° 108 km 01m35.7s
16:3652°16.7'N074°22.8'W50°59.7'N074°56.6'W51°38.0'N074°39.7'W 1.022 25° 178° 109 km 01m38.1s
16:3851°11.5'N073°16.7'W49°56.2'N073°53.0'W50°33.6'N073°34.8'W 1.022 26° 180° 111 km 01m40.2s
16:4050°09.4'N072°14.8'W48°55.7'N072°53.2'W49°32.4'N072°34.1'W 1.022 27° 182° 113 km 01m42.3s
16:4249°10.2'N071°16.6'W47°57.9'N071°56.8'W48°33.9'N071°36.7'W 1.023 28° 183° 114 km 01m44.2s
16:4448°13.6'N070°21.4'W47°02.5'N071°03.2'W47°37.9'N070°42.4'W 1.023 29° 185° 116 km 01m45.9s
16:4647°19.2'N069°28.9'W46°09.2'N070°12.0'W46°44.1'N069°50.5'W 1.023 30° 186° 117 km 01m47.6s
16:4846°26.9'N068°38.5'W45°17.8'N069°22.9'W45°52.2'N069°00.8'W 1.023 31° 188° 119 km 01m49.1s
16:5045°36.5'N067°50.1'W44°28.2'N068°35.6'W45°02.2'N068°12.9'W 1.023 31° 189° 120 km 01m50.5s
16:5244°47.7'N067°03.3'W43°40.3'N067°49.8'W44°13.9'N067°26.7'W 1.024 32° 191° 122 km 01m51.8s
16:5444°00.6'N066°18.0'W42°53.9'N067°05.4'W43°27.1'N066°41.8'W 1.024 33° 193° 123 km 01m53.0s
16:5643°14.9'N065°33.9'W42°08.8'N066°22.1'W42°41.7'N065°58.1'W 1.024 33° 194° 124 km 01m54.1s
16:5842°30.5'N064°50.9'W41°25.1'N065°39.8'W41°57.7'N065°15.5'W 1.024 34° 196° 126 km 01m55.1s
17:0041°47.5'N064°08.8'W40°42.6'N064°58.4'W41°15.0'N064°33.7'W 1.024 34° 197° 127 km 01m56.0s
17:0241°05.7'N063°27.4'W40°01.3'N064°17.7'W40°33.4'N063°52.7'W 1.024 34° 199° 128 km 01m56.8s
17:0440°25.0'N062°46.7'W39°21.1'N063°37.6'W39°52.9'N063°12.3'W 1.024 35° 200° 130 km 01m57.5s
17:0639°45.4'N062°06.5'W38°41.9'N062°58.0'W39°13.6'N062°32.4'W 1.024 35° 202° 131 km 01m58.1s
17:0839°06.8'N061°26.8'W38°03.7'N062°18.9'W38°35.2'N061°52.9'W 1.024 35° 203° 132 km 01m58.7s
17:1038°29.2'N060°47.3'W37°26.5'N061°40.0'W37°57.8'N061°13.8'W 1.024 35° 204° 133 km 01m59.1s
17:1237°52.5'N060°08.1'W36°50.2'N061°01.3'W37°21.3'N060°34.9'W 1.024 36° 206° 134 km 01m59.4s
17:1437°16.8'N059°29.1'W36°14.8'N060°22.8'W36°45.8'N059°56.1'W 1.024 36° 207° 136 km 01m59.7s
17:1636°42.0'N058°50.1'W35°40.3'N059°44.3'W36°11.1'N059°17.3'W 1.024 36° 209° 137 km 01m59.8s
17:1836°08.0'N058°11.1'W35°06.6'N059°05.7'W35°37.3'N058°38.6'W 1.024 36° 210° 138 km 01m59.9s
17:2035°34.8'N057°32.0'W34°33.7'N058°27.1'W35°04.3'N057°59.7'W 1.024 36° 212° 139 km 01m59.9s
17:2235°02.5'N056°52.7'W34°01.7'N057°48.3'W34°32.0'N057°20.6'W 1.024 36° 213° 140 km 01m59.7s
17:2434°30.9'N056°13.2'W33°30.4'N057°09.2'W34°00.6'N056°41.3'W 1.024 36° 215° 140 km 01m59.5s
17:2634°00.2'N055°33.2'W32°59.8'N056°29.8'W33°30.0'N056°01.7'W 1.024 36° 216° 141 km 01m59.2s
17:2833°30.2'N054°52.9'W32°30.1'N055°49.9'W33°00.1'N055°21.6'W 1.024 35° 217° 142 km 01m58.8s
17:3033°00.9'N054°12.0'W32°01.1'N055°09.5'W32°31.0'N054°40.9'W 1.024 35° 219° 142 km 01m58.3s
17:3232°32.5'N053°30.6'W31°32.8'N054°28.5'W32°02.6'N053°59.7'W 1.024 35° 220° 143 km 01m57.7s
17:3432°04.8'N052°48.4'W31°05.3'N053°46.9'W31°35.0'N053°17.8'W 1.024 34° 222° 143 km 01m57.0s
17:3631°37.8'N052°05.4'W30°38.6'N053°04.4'W31°08.2'N052°35.1'W 1.024 34° 223° 143 km 01m56.2s
17:3831°11.6'N051°21.5'W30°12.6'N052°21.1'W30°42.1'N051°51.5'W 1.024 34° 224° 143 km 01m55.3s
17:4030°46.2'N050°36.5'W29°47.4'N051°36.8'W30°16.8'N051°06.8'W 1.024 33° 226° 143 km 01m54.3s
17:4230°21.6'N049°50.4'W29°23.0'N050°51.3'W29°52.3'N050°21.1'W 1.023 33° 227° 143 km 01m53.2s
17:4429°57.8'N049°03.0'W28°59.3'N050°04.6'W29°28.6'N049°34.0'W 1.023 32° 228° 142 km 01m51.9s
17:4629°34.8'N048°14.1'W28°36.5'N049°16.5'W29°05.7'N048°45.5'W 1.023 32° 230° 142 km 01m50.6s
17:4829°12.7'N047°23.6'W28°14.6'N048°26.8'W28°43.6'N047°55.4'W 1.023 31° 231° 141 km 01m49.2s
17:5028°51.5'N046°31.2'W27°53.5'N047°35.3'W28°22.5'N047°03.5'W 1.023 30° 232° 140 km 01m47.6s
17:5228°31.2'N045°36.7'W27°33.4'N046°41.8'W28°02.3'N046°09.5'W 1.022 29° 233° 138 km 01m45.9s
17:5428°11.9'N044°39.9'W27°14.2'N045°46.1'W27°43.1'N045°13.2'W 1.022 29° 235° 137 km 01m44.1s
17:5627°53.6'N043°40.3'W26°56.1'N044°47.8'W27°24.9'N044°14.3'W 1.022 28° 236° 135 km 01m42.2s
17:5827°36.5'N042°37.6'W26°39.1'N043°46.6'W27°07.9'N043°12.4'W 1.022 27° 237° 133 km 01m40.1s
18:0027°20.7'N041°31.3'W26°23.4'N042°42.1'W26°52.1'N042°07.0'W 1.021 26° 238° 131 km 01m37.8s
18:0227°06.3'N040°20.8'W26°09.0'N041°33.6'W26°37.7'N040°57.6'W 1.021 25° 239° 128 km 01m35.4s
18:0426°53.5'N039°05.3'W25°56.2'N040°20.5'W26°24.8'N039°43.3'W 1.021 23° 241° 125 km 01m32.9s
18:0626°42.4'N037°43.6'W25°45.1'N039°01.9'W26°13.8'N038°23.2'W 1.020 22° 242° 122 km 01m30.1s
18:0826°33.6'N036°14.4'W25°36.0'N037°36.5'W26°04.9'N036°56.0'W 1.020 20° 243° 118 km 01m27.0s
18:1026°27.4'N034°35.5'W25°29.5'N036°02.5'W25°58.5'N035°19.7'W 1.019 19° 244° 114 km 01m23.7s
18:1226°24.7'N032°43.7'W25°26.1'N034°17.4'W25°55.4'N033°31.4'W 1.019 17° 246° 110 km 01m20.1s
18:1426°26.8'N030°33.1'W25°26.8'N032°16.9'W25°56.8'N031°26.1'W 1.018 15° 247° 105 km 01m16.0s
18:1626°36.5'N027°52.3'W25°33.7'N029°53.2'W26°04.9'N028°54.6'W 1.017 12° 249° 99 km 01m11.2s
18:1827°01.1'N024°09.2'W25°51.0'N026°48.2'W26°25.3'N025°33.2'W 1.016 250° 91 km 01m05.2s
18:20 - - 26°36.3'N021°50.1'W27°32.4'N018°58.6'W 1.014 254° 78 km 00m54.5s
Limits28°29.6'N016°14.5'W27°48.1'N016°17.1'W28°08.8'N016°15.8'W 1.014 - 73 km 00m50.6s

ΔT = 16.6 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse17:18:27.117:18:10.535°34.4'N058°39.4'W 35.8° 210.5° 137.8 km01m59.89s
Greatest Duration17:18:35.417:18:18.735°32.1'N058°32.5'W 35.8° 210.6° 137.8 km01m59.89s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Total Solar Eclipse of 1780 Oct 27

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

Eclipse Predictions

Predictions for the Total Solar Eclipse of 1780 Oct 27 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 16.6 seconds for this eclipse. The uncertainty in ΔT is 1.8 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.