Path of the Annular Solar Eclipse of 1777 Jan 09

Fred Espenak

Introduction

The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of 1777 Jan 09 . 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 .

Annular Solar Eclipse of 1777 Jan 09
UT1 Northern Limit Southern Limit Central Line M:S Sun Sun Path Central
Latitude Longitude Latitude Longitude Latitude Longitude Ratio Alt. Azm. Width Duration
Limits38°45.7'N108°34.3'W37°43.2'N108°57.2'W38°14.4'N108°45.9'W 0.974 - 117 km 01m50.3s
14:3837°58.7'N106°46.7'W34°17.1'N100°54.6'W35°38.3'N102°45.5'W 0.975 122° 110 km 01m48.7s
14:4034°21.4'N098°36.1'W32°26.8'N096°38.9'W33°21.0'N097°31.8'W 0.977 11° 126° 103 km 01m47.2s
14:4232°44.2'N094°57.6'W31°10.6'N093°41.3'W31°55.9'N094°17.1'W 0.978 14° 128° 99 km 01m46.1s
14:4431°32.8'N092°15.8'W30°10.3'N091°19.3'W30°50.6'N091°46.2'W 0.978 17° 130° 96 km 01m45.2s
14:4630°35.1'N090°03.2'W29°19.8'N089°18.6'W29°56.7'N089°40.0'W 0.979 19° 131° 94 km 01m44.4s
14:4829°46.2'N088°09.1'W28°36.1'N087°32.6'W29°10.5'N087°50.2'W 0.980 21° 133° 91 km 01m43.6s
14:5029°03.6'N086°28.0'W27°57.6'N085°57.2'W28°30.1'N086°12.1'W 0.980 23° 134° 89 km 01m42.9s
14:5228°25.9'N084°56.5'W27°23.3'N084°30.2'W27°54.2'N084°43.0'W 0.981 25° 135° 88 km 01m42.3s
14:5427°52.2'N083°32.7'W26°52.2'N083°09.8'W27°21.8'N083°21.0'W 0.981 26° 136° 86 km 01m41.7s
14:5627°21.7'N082°15.0'W26°24.1'N081°54.9'W26°52.5'N082°04.7'W 0.981 28° 138° 85 km 01m41.1s
14:5826°53.9'N081°02.3'W25°58.3'N080°44.5'W26°25.8'N080°53.2'W 0.982 29° 139° 84 km 01m40.6s
15:0026°28.6'N079°53.9'W25°34.8'N079°38.0'W26°01.4'N079°45.8'W 0.982 30° 140° 83 km 01m40.1s
15:0226°05.3'N078°49.1'W25°13.1'N078°34.8'W25°38.9'N078°41.8'W 0.982 31° 141° 81 km 01m39.6s
15:0425°44.0'N077°47.4'W24°53.2'N077°34.5'W25°18.3'N077°40.8'W 0.983 33° 142° 81 km 01m39.1s
15:0625°24.3'N076°48.5'W24°34.8'N076°36.7'W24°59.3'N076°42.5'W 0.983 34° 144° 80 km 01m38.7s
15:0825°06.2'N075°52.0'W24°17.8'N075°41.2'W24°41.8'N075°46.5'W 0.983 35° 145° 79 km 01m38.2s
15:1024°49.5'N074°57.6'W24°02.1'N074°47.6'W24°25.6'N074°52.5'W 0.983 36° 146° 78 km 01m37.8s
15:1224°34.1'N074°05.0'W23°47.7'N073°55.9'W24°10.7'N074°00.4'W 0.984 36° 147° 77 km 01m37.4s
15:1424°20.0'N073°14.2'W23°34.4'N073°05.7'W23°57.0'N073°09.9'W 0.984 37° 149° 77 km 01m37.0s
15:1624°07.0'N072°24.8'W23°22.2'N072°17.0'W23°44.4'N072°20.9'W 0.984 38° 150° 76 km 01m36.6s
15:1823°55.0'N071°36.9'W23°11.0'N071°29.5'W23°32.8'N071°33.2'W 0.984 39° 151° 76 km 01m36.2s
15:2023°44.1'N070°50.1'W23°00.8'N070°43.3'W23°22.3'N070°46.6'W 0.984 40° 152° 75 km 01m35.9s
15:2223°34.2'N070°04.4'W22°51.5'N069°58.0'W23°12.7'N070°01.2'W 0.984 40° 154° 74 km 01m35.5s
15:2423°25.2'N069°19.8'W22°43.1'N069°13.8'W23°04.0'N069°16.8'W 0.985 41° 155° 74 km 01m35.2s
15:2623°17.1'N068°36.0'W22°35.5'N068°30.4'W22°56.1'N068°33.2'W 0.985 41° 156° 74 km 01m34.9s
15:2823°09.8'N067°53.1'W22°28.7'N067°47.8'W22°49.1'N067°50.4'W 0.985 42° 158° 73 km 01m34.6s
15:3023°03.4'N067°10.9'W22°22.7'N067°05.8'W22°42.9'N067°08.3'W 0.985 42° 159° 73 km 01m34.3s
15:3222°57.8'N066°29.3'W22°17.5'N066°24.6'W22°37.5'N066°26.9'W 0.985 43° 160° 72 km 01m34.0s
15:3422°52.9'N065°48.4'W22°13.0'N065°43.9'W22°32.8'N065°46.1'W 0.985 43° 162° 72 km 01m33.8s
15:3622°48.9'N065°08.0'W22°09.3'N065°03.7'W22°28.9'N065°05.8'W 0.985 44° 163° 72 km 01m33.5s
15:3822°45.5'N064°28.0'W22°06.3'N064°23.9'W22°25.7'N064°25.9'W 0.985 44° 165° 72 km 01m33.3s
15:4022°42.9'N063°48.5'W22°03.9'N063°44.6'W22°23.3'N063°46.5'W 0.986 44° 166° 71 km 01m33.1s
15:4222°41.0'N063°09.3'W22°02.2'N063°05.6'W22°21.5'N063°07.4'W 0.986 45° 167° 71 km 01m32.9s
15:4422°39.8'N062°30.4'W22°01.3'N062°26.9'W22°20.4'N062°28.6'W 0.986 45° 169° 71 km 01m32.7s
15:4622°39.3'N061°51.8'W22°00.9'N061°48.4'W22°20.0'N061°50.1'W 0.986 45° 170° 71 km 01m32.5s
15:4822°39.4'N061°13.4'W22°01.3'N061°10.2'W22°20.2'N061°11.8'W 0.986 45° 172° 70 km 01m32.3s
15:5022°40.3'N060°35.2'W22°02.2'N060°32.1'W22°21.1'N060°33.7'W 0.986 45° 173° 70 km 01m32.2s
15:5222°41.8'N059°57.1'W22°03.9'N059°54.2'W22°22.7'N059°55.6'W 0.986 45° 175° 70 km 01m32.0s
15:5422°44.0'N059°19.1'W22°06.2'N059°16.3'W22°24.9'N059°17.7'W 0.986 46° 176° 70 km 01m31.9s
15:5622°46.9'N058°41.1'W22°09.1'N058°38.5'W22°27.8'N058°39.8'W 0.986 46° 178° 70 km 01m31.8s
15:5822°50.4'N058°03.1'W22°12.6'N058°00.6'W22°31.4'N058°01.9'W 0.986 45° 179° 70 km 01m31.7s
16:0022°54.7'N057°25.1'W22°16.9'N057°22.7'W22°35.6'N057°23.9'W 0.986 45° 181° 70 km 01m31.6s
16:0222°59.6'N056°47.0'W22°21.7'N056°44.7'W22°40.5'N056°45.9'W 0.986 45° 182° 69 km 01m31.5s
16:0423°05.1'N056°08.7'W22°27.3'N056°06.6'W22°46.1'N056°07.7'W 0.986 45° 184° 69 km 01m31.5s
16:0623°11.4'N055°30.3'W22°33.4'N055°28.3'W22°52.3'N055°29.3'W 0.986 45° 185° 69 km 01m31.5s
16:0823°18.4'N054°51.6'W22°40.3'N054°49.8'W22°59.2'N054°50.7'W 0.986 45° 187° 69 km 01m31.4s
16:1023°26.1'N054°12.6'W22°47.8'N054°11.0'W23°06.8'N054°11.8'W 0.986 44° 188° 69 km 01m31.4s
16:1223°34.5'N053°33.3'W22°56.1'N053°31.9'W23°15.1'N053°32.6'W 0.986 44° 190° 69 km 01m31.4s
16:1423°43.6'N052°53.7'W23°05.0'N052°52.4'W23°24.1'N052°53.1'W 0.986 44° 191° 69 km 01m31.5s
16:1623°53.5'N052°13.6'W23°14.6'N052°12.5'W23°33.9'N052°13.1'W 0.986 43° 193° 70 km 01m31.5s
16:1824°04.1'N051°33.0'W23°25.0'N051°32.1'W23°44.4'N051°32.6'W 0.986 43° 194° 70 km 01m31.6s
16:2024°15.6'N050°51.8'W23°36.1'N050°51.2'W23°55.7'N050°51.5'W 0.985 43° 195° 70 km 01m31.6s
16:2224°27.8'N050°10.0'W23°48.1'N050°09.6'W24°07.8'N050°09.9'W 0.985 42° 197° 70 km 01m31.7s
16:2424°40.9'N049°27.5'W24°00.8'N049°27.4'W24°20.7'N049°27.5'W 0.985 42° 198° 70 km 01m31.8s
16:2624°54.9'N048°44.3'W24°14.3'N048°44.4'W24°34.5'N048°44.4'W 0.985 41° 200° 70 km 01m32.0s
16:2825°09.8'N048°00.1'W24°28.7'N048°00.6'W24°49.1'N048°00.4'W 0.985 40° 201° 71 km 01m32.1s
16:3025°25.6'N047°15.0'W24°44.0'N047°15.9'W25°04.7'N047°15.5'W 0.985 40° 202° 71 km 01m32.3s
16:3225°42.5'N046°28.9'W25°00.3'N046°30.1'W25°21.2'N046°29.5'W 0.985 39° 203° 71 km 01m32.5s
16:3426°00.4'N045°41.5'W25°17.5'N045°43.2'W25°38.8'N045°42.4'W 0.985 38° 205° 72 km 01m32.7s
16:3626°19.3'N044°52.8'W25°35.8'N044°55.1'W25°57.4'N044°54.0'W 0.984 37° 206° 72 km 01m32.9s
16:3826°39.5'N044°02.7'W25°55.2'N044°05.5'W26°17.2'N044°04.2'W 0.984 37° 207° 73 km 01m33.1s
16:4027°00.9'N043°10.9'W26°15.8'N043°14.4'W26°38.1'N043°12.7'W 0.984 36° 209° 73 km 01m33.4s
16:4227°23.7'N042°17.2'W26°37.6'N042°21.5'W27°00.4'N042°19.5'W 0.984 35° 210° 74 km 01m33.7s
16:4427°47.9'N041°21.5'W27°00.7'N041°26.7'W27°24.1'N041°24.2'W 0.984 34° 211° 75 km 01m34.0s
16:4628°13.7'N040°23.5'W27°25.4'N040°29.7'W27°49.3'N040°26.7'W 0.983 33° 212° 75 km 01m34.3s
16:4828°41.3'N039°22.8'W27°51.6'N039°30.1'W28°16.2'N039°26.6'W 0.983 32° 214° 76 km 01m34.7s
16:5029°10.8'N038°19.0'W28°19.6'N038°27.7'W28°44.9'N038°23.5'W 0.983 31° 215° 77 km 01m35.1s
16:5229°42.4'N037°11.7'W28°49.6'N037°22.1'W29°15.7'N037°17.1'W 0.983 29° 216° 78 km 01m35.5s
16:5430°16.5'N036°00.2'W29°21.7'N036°12.6'W29°48.8'N036°06.6'W 0.982 28° 217° 79 km 01m36.0s
16:5630°53.3'N034°43.9'W29°56.4'N034°58.7'W30°24.5'N034°51.5'W 0.982 27° 219° 81 km 01m36.4s
16:5831°33.5'N033°21.5'W30°34.0'N033°39.5'W31°03.3'N033°30.8'W 0.982 25° 220° 82 km 01m37.0s
17:0032°17.6'N031°51.9'W31°14.9'N032°13.8'W31°45.8'N032°03.3'W 0.981 23° 221° 84 km 01m37.5s
17:0233°06.6'N030°13.1'W32°00.0'N030°40.0'W32°32.8'N030°27.1'W 0.981 22° 223° 85 km 01m38.2s
17:0434°01.8'N028°22.0'W32°50.3'N028°56.0'W33°25.4'N028°39.7'W 0.980 20° 224° 87 km 01m38.9s
17:0635°05.5'N026°13.8'W33°47.3'N026°58.0'W34°25.5'N026°37.0'W 0.980 18° 226° 90 km 01m39.7s
17:0836°21.8'N023°39.6'W34°53.8'N024°40.3'W35°36.5'N024°11.8'W 0.979 15° 228° 93 km 01m40.6s
17:1038°00.2'N020°18.6'W36°14.9'N021°50.8'W37°05.1'N021°08.7'W 0.978 12° 230° 97 km 01m41.7s
17:1240°39.1'N014°45.8'W38°04.3'N017°58.6'W39°12.8'N016°40.0'W 0.977 234° 102 km 01m43.2s
Limits43°26.4'N008°39.4'W42°28.0'N008°11.3'W42°57.1'N008°25.2'W 0.975 - 112 km 01m45.6s

ΔT = 16.5 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse15:55:35.015:55:18.622°26.8'N058°57.0'W 45.5° 177.3° 69.8 km01m31.83s
Greatest Duration14:37:32.714:37:16.238°14.4'N108°45.9'W 0.0° 118.5° 117.3 km01m50.30s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Annular Solar Eclipse of 1777 Jan 09

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 Annular Solar Eclipse of 1777 Jan 09 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 16.5 seconds for this eclipse. The uncertainty in ΔT is 1.9 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.