Path of the Total Solar Eclipse of -1777 Jul 17

Fred Espenak

Introduction

The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of -1777 Jul 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 -1777 Jul 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
Limits38°00.8'N051°47.2'E36°21.9'N053°39.8'E37°11.0'N052°44.4'E 1.046 - 241 km 02m12.6s
01:1040°20.1'N056°29.9'E42°45.7'N066°35.6'E41°59.5'N062°24.9'E 1.049 66° 257 km 02m29.2s
01:1243°35.9'N062°42.7'E44°36.2'N070°04.5'E44°14.7'N066°39.4'E 1.051 13° 70° 263 km 02m37.2s
01:1445°40.0'N066°29.8'E46°07.9'N072°56.4'E45°59.2'N069°52.3'E 1.052 16° 72° 266 km 02m43.4s
01:1647°20.3'N069°30.4'E47°28.3'N075°27.1'E47°28.1'N072°35.4'E 1.052 19° 75° 269 km 02m48.7s
01:1848°47.1'N072°06.4'E48°40.8'N077°43.9'E48°47.0'N075°00.6'E 1.053 21° 78° 271 km 02m53.4s
01:2050°04.9'N074°27.0'E49°47.4'N079°51.0'E49°58.8'N077°13.8'E 1.054 23° 80° 272 km 02m57.7s
01:2251°16.2'N076°37.2'E50°49.3'N081°51.1'E51°05.0'N079°18.5'E 1.054 25° 82° 273 km 03m01.7s
01:2452°22.4'N078°39.9'E51°47.3'N083°46.0'E52°06.9'N081°17.1'E 1.055 26° 85° 274 km 03m05.4s
01:2653°24.3'N080°37.2'E52°42.1'N085°36.9'E53°05.0'N083°11.1'E 1.055 28° 87° 275 km 03m08.8s
01:2854°22.8'N082°30.6'E53°33.9'N087°24.9'E54°00.0'N085°01.7'E 1.056 29° 89° 275 km 03m12.1s
01:3055°18.2'N084°21.1'E54°23.3'N089°10.7'E54°52.3'N086°49.8'E 1.056 31° 92° 276 km 03m15.1s
01:3256°10.9'N086°09.6'E55°10.4'N090°54.9'E55°42.1'N088°36.2'E 1.056 32° 94° 276 km 03m18.0s
01:3457°01.2'N087°56.8'E55°55.3'N092°38.1'E56°29.6'N090°21.4'E 1.057 33° 97° 276 km 03m20.8s
01:3657°49.4'N089°43.2'E56°38.4'N094°20.6'E57°15.1'N092°06.0'E 1.057 34° 99° 276 km 03m23.4s
01:3858°35.5'N091°29.4'E57°19.6'N096°02.8'E57°58.7'N093°50.2'E 1.057 35° 102° 276 km 03m25.9s
01:4059°19.7'N093°15.6'E57°59.2'N097°45.0'E58°40.5'N095°34.5'E 1.057 36° 104° 276 km 03m28.2s
01:4260°02.2'N095°02.4'E58°37.1'N099°27.6'E59°20.6'N097°19.3'E 1.058 37° 107° 276 km 03m30.5s
01:4460°42.9'N096°49.9'E59°13.4'N101°10.6'E59°59.1'N099°04.7'E 1.058 38° 110° 276 km 03m32.6s
01:4661°22.0'N098°38.6'E59°48.2'N102°54.4'E60°35.9'N100°51.0'E 1.058 39° 112° 276 km 03m34.6s
01:4861°59.5'N100°28.6'E60°21.5'N104°39.2'E61°11.3'N102°38.5'E 1.058 40° 115° 276 km 03m36.4s
01:5062°35.4'N102°20.2'E60°53.4'N106°25.0'E61°45.1'N104°27.3'E 1.059 40° 118° 276 km 03m38.2s
01:5263°09.7'N104°13.6'E61°23.8'N108°12.2'E62°17.4'N106°17.6'E 1.059 41° 121° 275 km 03m39.9s
01:5463°42.5'N106°09.0'E61°52.9'N110°00.7'E62°48.2'N108°09.5'E 1.059 42° 124° 275 km 03m41.4s
01:5664°13.8'N108°06.5'E62°20.5'N111°50.6'E63°17.6'N110°03.3'E 1.059 42° 127° 275 km 03m42.9s
01:5864°43.5'N110°06.3'E62°46.6'N113°42.2'E63°45.5'N111°59.0'E 1.059 43° 130° 275 km 03m44.2s
02:0065°11.7'N112°08.6'E63°11.4'N115°35.4'E64°11.8'N113°56.7'E 1.059 43° 133° 275 km 03m45.5s
02:0265°38.3'N114°13.4'E63°34.7'N117°30.4'E64°36.7'N115°56.5'E 1.059 44° 137° 275 km 03m46.6s
02:0466°03.3'N116°20.8'E63°56.6'N119°27.1'E65°00.1'N117°58.4'E 1.060 44° 140° 274 km 03m47.7s
02:0666°26.6'N118°30.8'E64°17.0'N121°25.6'E65°21.9'N120°02.6'E 1.060 45° 143° 274 km 03m48.6s
02:0866°48.3'N120°43.5'E64°35.9'N123°25.9'E65°42.1'N122°08.8'E 1.060 45° 147° 274 km 03m49.5s
02:1067°08.4'N122°58.9'E64°53.3'N125°28.0'E66°00.7'N124°17.3'E 1.060 45° 150° 274 km 03m50.2s
02:1267°26.6'N125°16.8'E65°09.2'N127°31.8'E66°17.8'N126°27.9'E 1.060 46° 154° 274 km 03m50.9s
02:1467°43.1'N127°37.3'E65°23.5'N129°37.2'E66°33.1'N128°40.5'E 1.060 46° 157° 274 km 03m51.4s
02:1667°57.8'N130°00.2'E65°36.3'N131°44.3'E66°46.8'N130°55.1'E 1.060 46° 161° 274 km 03m51.8s
02:1868°10.6'N132°25.4'E65°47.5'N133°52.9'E66°58.7'N133°11.6'E 1.060 46° 165° 274 km 03m52.2s
02:2068°21.6'N134°52.7'E65°57.0'N136°02.9'E67°08.9'N135°29.8'E 1.060 46° 168° 273 km 03m52.4s
02:2268°30.6'N137°21.9'E66°05.0'N138°14.1'E67°17.4'N137°49.5'E 1.060 46° 172° 273 km 03m52.6s
02:2468°37.6'N139°52.7'E66°11.2'N140°26.5'E67°24.0'N140°10.5'E 1.060 46° 176° 273 km 03m52.6s
02:2668°42.7'N142°24.9'E66°15.8'N142°39.9'E67°28.8'N142°32.7'E 1.060 46° 180° 273 km 03m52.6s
02:2868°45.7'N144°58.1'E66°18.6'N144°54.0'E67°31.8'N144°55.8'E 1.060 46° 184° 273 km 03m52.5s
02:3068°46.7'N147°32.2'E66°19.8'N147°08.8'E67°32.9'N147°19.6'E 1.060 46° 187° 273 km 03m52.2s
02:3268°45.7'N150°06.7'E66°19.2'N149°24.0'E67°32.1'N149°43.9'E 1.060 46° 191° 273 km 03m51.9s
02:3468°42.6'N152°41.3'E66°16.9'N151°39.4'E67°29.4'N152°08.4'E 1.060 46° 195° 273 km 03m51.4s
02:3668°37.4'N155°15.8'E66°12.8'N153°54.9'E67°24.8'N154°32.8'E 1.060 45° 199° 273 km 03m50.9s
02:3868°30.1'N157°49.8'E66°07.0'N156°10.4'E67°18.2'N156°57.0'E 1.060 45° 203° 273 km 03m50.2s
02:4068°20.7'N160°23.0'E65°59.3'N158°25.5'E67°09.8'N159°20.7'E 1.060 45° 206° 273 km 03m49.5s
02:4268°09.3'N162°55.2'E65°50.0'N160°40.2'E66°59.5'N161°43.7'E 1.060 44° 210° 273 km 03m48.6s
02:4467°55.8'N165°26.1'E65°38.8'N162°54.2'E66°47.2'N164°05.7'E 1.060 44° 214° 273 km 03m47.7s
02:4667°40.2'N167°55.5'E65°25.8'N165°07.6'E66°33.0'N166°26.8'E 1.060 43° 217° 274 km 03m46.6s
02:4867°22.5'N170°23.2'E65°11.1'N167°20.1'E66°16.9'N168°46.6'E 1.059 43° 221° 274 km 03m45.4s
02:5067°02.8'N172°49.2'E64°54.6'N169°31.7'E65°58.9'N171°05.1'E 1.059 42° 224° 274 km 03m44.2s
02:5266°41.1'N175°13.2'E64°36.3'N171°42.3'E65°39.0'N173°22.3'E 1.059 42° 228° 274 km 03m42.8s
02:5466°17.4'N177°35.3'E64°16.2'N173°51.8'E65°17.2'N175°37.9'E 1.059 41° 231° 274 km 03m41.3s
02:5665°51.6'N179°55.4'E63°54.3'N176°00.2'E64°53.4'N177°52.1'E 1.059 41° 235° 274 km 03m39.8s
02:5865°23.7'N177°46.4'W63°30.6'N178°07.6'E64°27.8'N179°55.1'W 1.059 40° 238° 274 km 03m38.1s
03:0064°53.9'N175°30.0'W63°05.1'N179°46.1'W64°00.2'N177°43.8'W 1.058 39° 241° 274 km 03m36.3s
03:0264°21.9'N173°15.5'W62°37.7'N177°40.7'W63°30.6'N175°33.8'W 1.058 38° 244° 274 km 03m34.3s
03:0463°47.9'N171°02.5'W62°08.3'N175°36.2'W62°59.0'N173°25.0'W 1.058 37° 247° 274 km 03m32.3s
03:0663°11.6'N168°50.9'W61°37.1'N173°32.4'W62°25.4'N171°17.2'W 1.058 36° 251° 274 km 03m30.2s
03:0862°33.2'N166°40.4'W61°03.9'N171°29.2'W61°49.7'N169°10.3'W 1.058 35° 254° 274 km 03m27.9s
03:1061°52.5'N164°30.8'W60°28.5'N169°26.4'W61°11.8'N167°04.0'W 1.057 34° 256° 274 km 03m25.5s
03:1261°09.3'N162°21.6'W59°51.1'N167°23.7'W60°31.6'N164°57.9'W 1.057 33° 259° 274 km 03m22.9s
03:1460°23.5'N160°12.4'W59°11.3'N165°20.7'W59°48.9'N162°51.8'W 1.057 32° 262° 274 km 03m20.2s
03:1659°35.0'N158°02.7'W58°29.1'N163°17.2'W59°03.7'N160°45.1'W 1.056 31° 265° 274 km 03m17.4s
03:1858°43.4'N155°51.8'W57°44.3'N161°12.6'W58°15.7'N158°37.2'W 1.056 30° 268° 274 km 03m14.3s
03:2057°48.4'N153°38.9'W56°56.7'N159°06.3'W57°24.5'N156°27.6'W 1.056 28° 271° 273 km 03m11.1s
03:2256°49.5'N151°22.8'W56°05.9'N156°57.7'W56°29.9'N154°15.3'W 1.055 27° 273° 273 km 03m07.7s
03:2455°46.1'N149°02.3'W55°11.4'N154°45.7'W55°31.2'N151°59.2'W 1.055 25° 276° 272 km 03m04.1s
03:2654°37.3'N146°35.3'W54°12.8'N152°29.1'W54°27.9'N149°37.7'W 1.054 23° 279° 271 km 03m00.2s
03:2853°21.6'N143°58.8'W53°09.3'N150°06.3'W53°18.8'N147°08.6'W 1.054 21° 281° 270 km 02m56.0s
03:3051°56.7'N141°08.3'W51°59.6'N147°34.6'W52°02.3'N144°28.6'W 1.053 19° 284° 269 km 02m51.3s
03:3250°18.6'N137°55.4'W50°41.9'N144°50.2'W50°35.7'N141°32.2'W 1.052 17° 287° 267 km 02m46.1s
03:3448°17.8'N134°01.1'W49°12.9'N141°46.3'W48°53.9'N138°08.7'W 1.051 14° 290° 264 km 02m40.1s
03:3645°20.0'N128°15.7'W47°26.1'N138°09.0'W46°44.2'N133°51.8'W 1.050 10° 294° 259 km 02m32.5s
03:38 - - 45°02.2'N133°18.2'W42°51.3'N126°05.5'W 1.048 300° 249 km 02m19.4s
Limits42°02.4'N121°40.2'W40°24.5'N123°43.0'W41°13.2'N122°42.7'W 1.047 - 244 km 02m14.1s

ΔT = 41149.8 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse13:49:02.002:23:12.267°21.6'N032°41.4'W 46.3° 174.4° 273.4 km03m52.64s
Greatest Duration13:49:51.502:24:01.767°24.1'N140°12.5'E 46.3° 176.0° 273.3 km03m52.65s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Total Solar Eclipse of -1777 Jul 17

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 -1777 Jul 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 41149.8 seconds for this eclipse. The uncertainty in ΔT is 2846.5 seconds corresponding to a standard error in longitude of the eclipse path of ± 11.89°.

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.