Path of the Total Solar Eclipse of -1781 Apr 04

Fred Espenak

Introduction

The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of -1781 Apr 04 . 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 Apr 04
UT1 Northern Limit Southern Limit Central Line M:S Sun Sun Path Central
Latitude Longitude Latitude Longitude Latitude Longitude Ratio Alt. Azm. Width Duration
Limits48°46.9'S173°54.8'W50°10.0'S174°18.1'W49°28.3'S174°06.2'W 1.039 - 155 km 02m09.5s
17:4048°39.1'S162°27.7'W - - 49°29.0'S166°45.5'W 1.041 86° 159 km 02m19.4s
17:4248°14.4'S155°03.8'W50°00.4'S159°43.1'W49°07.7'S157°09.0'W 1.043 11° 78° 165 km 02m34.0s
17:4447°47.9'S150°05.1'W49°37.0'S153°16.5'W48°42.5'S151°33.5'W 1.044 15° 73° 169 km 02m43.4s
17:4647°20.9'S146°08.7'W49°11.6'S148°34.8'W48°16.1'S147°16.9'W 1.045 19° 70° 172 km 02m51.1s
17:4846°53.6'S142°49.4'W48°45.2'S144°45.8'W47°49.2'S143°43.9'W 1.046 21° 66° 174 km 02m57.8s
17:5046°26.2'S139°55.6'W48°18.4'S141°30.0'W47°22.1'S140°39.8'W 1.047 24° 63° 176 km 03m03.9s
17:5245°58.8'S137°20.5'W47°51.3'S138°37.8'W46°54.8'S137°56.7'W 1.047 26° 61° 177 km 03m09.5s
17:5445°31.4'S135°00.1'W47°24.1'S136°03.3'W46°27.5'S135°29.6'W 1.048 28° 58° 179 km 03m14.7s
17:5645°04.1'S132°51.5'W46°56.8'S133°42.9'W46°00.1'S133°15.4'W 1.048 30° 56° 180 km 03m19.6s
17:5844°36.8'S130°52.7'W46°29.5'S131°33.9'W45°32.8'S131°11.7'W 1.049 31° 54° 182 km 03m24.3s
18:0044°09.7'S129°02.1'W46°02.2'S129°34.4'W45°05.6'S129°16.9'W 1.049 33° 52° 183 km 03m28.7s
18:0243°42.6'S127°18.6'W45°34.9'S127°43.0'W44°38.4'S127°29.6'W 1.050 34° 50° 184 km 03m32.9s
18:0443°15.7'S125°41.3'W45°07.7'S125°58.6'W44°11.4'S125°48.9'W 1.050 36° 48° 185 km 03m36.9s
18:0642°48.8'S124°09.4'W44°40.5'S124°20.3'W43°44.4'S124°13.9'W 1.050 37° 46° 187 km 03m40.8s
18:0842°22.1'S122°42.2'W44°13.5'S122°47.3'W43°17.5'S122°44.0'W 1.051 39° 44° 188 km 03m44.4s
18:1041°55.5'S121°19.4'W43°46.5'S121°19.2'W42°50.7'S121°18.5'W 1.051 40° 42° 189 km 03m47.9s
18:1241°29.0'S120°00.3'W43°19.7'S119°55.3'W42°24.1'S119°57.1'W 1.051 41° 40° 190 km 03m51.3s
18:1441°02.7'S118°44.7'W42°52.9'S118°35.2'W41°57.5'S118°39.4'W 1.051 42° 38° 190 km 03m54.5s
18:1640°36.5'S117°32.3'W42°26.2'S117°18.7'W41°31.1'S117°24.9'W 1.052 43° 36° 191 km 03m57.6s
18:1840°10.3'S116°22.7'W41°59.7'S116°05.2'W41°04.7'S116°13.5'W 1.052 45° 34° 192 km 04m00.5s
18:2039°44.3'S115°15.7'W41°33.2'S114°54.7'W40°38.5'S115°04.8'W 1.052 46° 32° 193 km 04m03.4s
18:2239°18.5'S114°11.1'W41°06.9'S113°46.7'W40°12.4'S113°58.6'W 1.052 47° 30° 194 km 04m06.1s
18:2438°52.7'S113°08.7'W40°40.6'S112°41.2'W39°46.4'S112°54.7'W 1.053 48° 29° 195 km 04m08.6s
18:2638°27.0'S112°08.4'W40°14.5'S111°37.9'W39°20.5'S111°52.9'W 1.053 48° 27° 195 km 04m11.1s
18:2838°01.5'S111°09.8'W39°48.5'S110°36.7'W38°54.7'S110°53.0'W 1.053 49° 25° 196 km 04m13.4s
18:3037°36.1'S110°13.1'W39°22.6'S109°37.3'W38°29.1'S109°55.0'W 1.053 50° 23° 197 km 04m15.6s
18:3237°10.7'S109°17.9'W38°56.8'S108°39.7'W38°03.5'S108°58.6'W 1.053 51° 21° 198 km 04m17.7s
18:3436°45.5'S108°24.2'W38°31.1'S107°43.7'W37°38.0'S108°03.8'W 1.053 52° 19° 198 km 04m19.7s
18:3636°20.4'S107°31.8'W38°05.4'S106°49.2'W37°12.7'S107°10.4'W 1.054 53° 17° 199 km 04m21.5s
18:3835°55.4'S106°40.7'W37°39.9'S105°56.0'W36°47.4'S106°18.3'W 1.054 53° 15° 200 km 04m23.3s
18:4035°30.4'S105°50.8'W37°14.5'S105°04.2'W36°22.3'S105°27.5'W 1.054 54° 13° 200 km 04m24.9s
18:4235°05.6'S105°02.0'W36°49.2'S104°13.5'W35°57.2'S104°37.7'W 1.054 55° 10° 201 km 04m26.4s
18:4434°40.9'S104°14.2'W36°24.0'S103°23.9'W35°32.2'S103°49.1'W 1.054 55° 202 km 04m27.8s
18:4634°16.2'S103°27.3'W35°58.9'S102°35.4'W35°07.4'S103°01.4'W 1.054 56° 202 km 04m29.1s
18:4833°51.7'S102°41.3'W35°33.9'S101°47.8'W34°42.6'S102°14.6'W 1.054 56° 203 km 04m30.3s
18:5033°27.2'S101°56.1'W35°08.9'S101°01.0'W34°17.9'S101°28.6'W 1.054 57° 204 km 04m31.3s
18:5233°02.8'S101°11.6'W34°44.1'S100°15.1'W33°53.3'S100°43.4'W 1.054 57° 359° 204 km 04m32.3s
18:5432°38.5'S100°27.8'W34°19.3'S099°29.9'W33°28.7'S099°59.0'W 1.054 57° 357° 205 km 04m33.1s
18:5632°14.3'S099°44.6'W33°54.6'S098°45.4'W33°04.3'S099°15.1'W 1.054 58° 355° 205 km 04m33.9s
18:5831°50.1'S099°02.0'W33°30.0'S098°01.5'W32°39.9'S098°31.9'W 1.054 58° 352° 206 km 04m34.5s
19:0031°26.1'S098°19.8'W33°05.5'S097°18.1'W32°15.6'S097°49.1'W 1.054 58° 350° 207 km 04m35.0s
19:0231°02.1'S097°38.2'W32°41.1'S096°35.3'W31°51.4'S097°06.9'W 1.054 58° 348° 207 km 04m35.4s
19:0430°38.2'S096°56.9'W32°16.7'S095°52.9'W31°27.3'S096°25.1'W 1.054 59° 345° 208 km 04m35.7s
19:0630°14.3'S096°16.0'W31°52.4'S095°10.9'W31°03.2'S095°43.7'W 1.054 59° 343° 208 km 04m35.8s
19:0829°50.5'S095°35.4'W31°28.2'S094°29.3'W30°39.3'S095°02.6'W 1.054 59° 340° 209 km 04m35.9s
19:1029°26.8'S094°55.1'W31°04.1'S093°48.0'W30°15.3'S094°21.8'W 1.054 59° 338° 209 km 04m35.9s
19:1229°03.2'S094°15.0'W30°40.0'S093°06.9'W29°51.5'S093°41.2'W 1.054 59° 336° 209 km 04m35.7s
19:1428°39.6'S093°35.1'W30°16.0'S092°26.1'W29°27.7'S093°00.8'W 1.054 59° 333° 210 km 04m35.4s
19:1628°16.1'S092°55.3'W29°52.1'S091°45.4'W29°04.0'S092°20.6'W 1.054 59° 331° 210 km 04m35.1s
19:1827°52.6'S092°15.6'W29°28.2'S091°04.9'W28°40.3'S091°40.5'W 1.054 58° 328° 211 km 04m34.6s
19:2027°29.2'S091°36.0'W29°04.4'S090°24.4'W28°16.7'S091°00.5'W 1.054 58° 326° 211 km 04m34.0s
19:2227°05.9'S090°56.4'W28°40.6'S089°43.9'W27°53.2'S090°20.4'W 1.054 58° 324° 211 km 04m33.3s
19:2426°42.6'S090°16.7'W28°16.9'S089°03.4'W27°29.7'S089°40.4'W 1.054 58° 322° 212 km 04m32.4s
19:2626°19.3'S089°37.0'W27°53.2'S088°22.9'W27°06.2'S089°00.2'W 1.054 57° 320° 212 km 04m31.5s
19:2825°56.1'S088°57.1'W27°29.7'S087°42.2'W26°42.8'S088°20.0'W 1.054 57° 317° 212 km 04m30.5s
19:3025°33.0'S088°17.1'W27°06.1'S087°01.4'W26°19.5'S087°39.5'W 1.054 56° 315° 212 km 04m29.3s
19:3225°09.9'S087°36.8'W26°42.6'S086°20.4'W25°56.2'S086°58.9'W 1.054 56° 313° 213 km 04m28.1s
19:3424°46.9'S086°56.2'W26°19.2'S085°39.1'W25°33.0'S086°18.0'W 1.054 55° 311° 213 km 04m26.7s
19:3624°23.9'S086°15.4'W25°55.7'S084°57.5'W25°09.8'S085°36.8'W 1.054 55° 309° 213 km 04m25.2s
19:3824°00.9'S085°34.1'W25°32.4'S084°15.5'W24°46.6'S084°55.1'W 1.053 54° 307° 213 km 04m23.6s
19:4023°38.0'S084°52.4'W25°09.0'S083°33.0'W24°23.5'S084°13.1'W 1.053 54° 306° 213 km 04m21.9s
19:4223°15.1'S084°10.3'W24°45.8'S082°50.1'W24°00.4'S083°30.6'W 1.053 53° 304° 213 km 04m20.1s
19:4422°52.3'S083°27.5'W24°22.5'S082°06.6'W23°37.4'S082°47.5'W 1.053 52° 302° 213 km 04m18.2s
19:4622°29.4'S082°44.2'W23°59.3'S081°22.5'W23°14.4'S082°03.7'W 1.053 51° 301° 213 km 04m16.2s
19:4822°06.7'S082°00.2'W23°36.1'S080°37.7'W22°51.4'S081°19.3'W 1.053 51° 299° 212 km 04m14.0s
19:5021°43.9'S081°15.3'W23°12.9'S079°52.0'W22°28.4'S080°34.1'W 1.053 50° 297° 212 km 04m11.7s
19:5221°21.2'S080°29.7'W22°49.7'S079°05.6'W22°05.5'S079°48.0'W 1.052 49° 296° 212 km 04m09.4s
19:5420°58.5'S079°43.0'W22°26.6'S078°18.1'W21°42.6'S079°01.0'W 1.052 48° 295° 211 km 04m06.9s
19:5620°35.9'S078°55.4'W22°03.5'S077°29.5'W21°19.7'S078°12.9'W 1.052 47° 293° 211 km 04m04.3s
19:5820°13.2'S078°06.6'W21°40.4'S076°39.8'W20°56.8'S077°23.7'W 1.052 46° 292° 210 km 04m01.5s
20:0019°50.6'S077°16.5'W21°17.3'S075°48.7'W20°34.0'S076°33.1'W 1.051 45° 290° 210 km 03m58.7s
20:0219°28.0'S076°25.0'W20°54.2'S074°56.2'W20°11.2'S075°41.1'W 1.051 44° 289° 209 km 03m55.7s
20:0419°05.4'S075°31.9'W20°31.1'S074°02.0'W19°48.3'S074°47.5'W 1.051 43° 288° 208 km 03m52.6s
20:0618°42.8'S074°37.2'W20°08.0'S073°06.0'W19°25.5'S073°52.1'W 1.051 42° 287° 207 km 03m49.3s
20:0818°20.3'S073°40.5'W19°44.9'S072°07.9'W19°02.7'S072°54.8'W 1.050 40° 286° 206 km 03m46.0s
20:1017°57.7'S072°41.6'W19°21.8'S071°07.6'W18°39.8'S071°55.2'W 1.050 39° 285° 205 km 03m42.4s
20:1217°35.1'S071°40.3'W18°58.6'S070°04.7'W18°17.0'S070°53.2'W 1.050 38° 284° 203 km 03m38.8s
20:1417°12.6'S070°36.3'W18°35.5'S068°58.9'W17°54.1'S069°48.3'W 1.049 36° 283° 202 km 03m34.9s
20:1616°50.0'S069°29.2'W18°12.2'S067°49.8'W17°31.2'S068°40.2'W 1.049 35° 282° 200 km 03m31.0s
20:1816°27.4'S068°18.6'W17°49.0'S066°36.8'W17°08.3'S067°28.5'W 1.049 33° 281° 198 km 03m26.8s
20:2016°04.8'S067°03.8'W17°25.6'S065°19.3'W16°45.3'S066°12.4'W 1.048 32° 280° 197 km 03m22.4s
20:2215°42.1'S065°44.3'W17°02.2'S063°56.5'W16°22.3'S064°51.3'W 1.048 30° 279° 194 km 03m17.8s
20:2415°19.4'S064°19.1'W16°38.6'S062°27.3'W15°59.2'S063°24.2'W 1.047 28° 278° 192 km 03m13.0s
20:2614°56.6'S062°46.9'W16°14.9'S060°50.3'W15°36.0'S061°49.8'W 1.047 26° 277° 189 km 03m07.8s
20:2814°33.8'S061°06.3'W15°51.1'S059°03.4'W15°12.6'S060°06.2'W 1.046 24° 276° 186 km 03m02.3s
20:3014°10.8'S059°14.6'W15°26.9'S057°03.4'W14°49.1'S058°10.7'W 1.045 22° 275° 183 km 02m56.4s
20:3213°47.7'S057°08.4'W15°02.4'S054°45.3'W14°25.3'S055°58.9'W 1.044 19° 274° 179 km 02m49.9s
20:3413°24.3'S054°41.1'W14°37.4'S051°59.2'W14°01.2'S053°23.2'W 1.044 17° 273° 175 km 02m42.6s
20:3613°00.6'S051°40.0'W14°11.3'S048°22.2'W13°36.4'S050°06.7'W 1.042 13° 272° 170 km 02m34.0s
20:3812°35.9'S047°30.1'W13°42.0'S042°06.7'W13°10.0'S045°14.0'W 1.041 271° 162 km 02m22.2s
Limits12°10.2'S037°49.4'W13°31.6'S037°28.7'W12°50.8'S037°39.2'W 1.038 - 151 km 02m06.4s

ΔT = 41248.0 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse06:36:40.919:09:13.030°24.7'S093°02.0'E 58.8° 338.9° 208.8 km04m35.88s
Greatest Duration06:35:37.319:08:09.330°37.4'S094°59.4'W 58.8° 340.1° 208.6 km04m35.90s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Total Solar Eclipse of -1781 Apr 04

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 -1781 Apr 04 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 41248.0 seconds for this eclipse. The uncertainty in ΔT is 2862.4 seconds corresponding to a standard error in longitude of the eclipse path of ± 11.96°.

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.