Path of the Annular Solar Eclipse of -1091 Aug 20

Fred Espenak

Introduction

The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of -1091 Aug 20 . 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 -1091 Aug 20
UT1 Northern Limit Southern Limit Central Line M:S Sun Sun Path Central
Latitude Longitude Latitude Longitude Latitude Longitude Ratio Alt. Azm. Width Duration
Limits02°22.7'N050°55.0'W00°15.3'S050°13.0'W01°03.9'N050°33.6'W 0.920 - 301 km 05m42.3s
09:2403°19.0'N047°37.3'W - - 01°45.9'N048°08.9'W 0.921 74° 299 km 05m47.1s
09:2605°12.5'N040°44.6'W02°28.2'N040°48.0'W03°51.5'N040°42.4'W 0.923 11° 74° 291 km 06m04.2s
09:2806°09.0'N037°07.3'W03°29.3'N037°03.9'W04°49.9'N037°03.0'W 0.924 15° 75° 286 km 06m14.1s
09:3006°49.8'N034°22.7'W04°12.6'N034°17.6'W05°31.8'N034°18.2'W 0.925 18° 75° 283 km 06m22.2s
09:3207°22.0'N032°06.2'W04°46.7'N032°00.9'W06°04.9'N032°01.9'W 0.926 21° 75° 281 km 06m29.5s
09:3407°48.6'N030°07.8'W05°14.8'N030°03.0'W06°32.2'N030°04.0'W 0.926 24° 75° 279 km 06m36.1s
09:3608°11.2'N028°22.3'W05°38.6'N028°18.3'W06°55.3'N028°19.1'W 0.927 26° 75° 277 km 06m42.4s
09:3808°30.6'N026°46.6'W05°59.0'N026°43.6'W07°15.2'N026°44.0'W 0.927 28° 75° 275 km 06m48.3s
09:4008°47.5'N025°18.6'W06°16.8'N025°16.7'W07°32.5'N025°16.7'W 0.928 30° 76° 273 km 06m54.0s
09:4209°02.2'N023°56.9'W06°32.4'N023°56.2'W07°47.7'N023°55.7'W 0.928 32° 76° 272 km 06m59.5s
09:4409°15.2'N022°40.5'W06°46.2'N022°41.1'W08°01.0'N022°40.0'W 0.928 33° 76° 271 km 07m04.8s
09:4609°26.5'N021°28.6'W06°58.3'N021°30.4'W08°12.7'N021°28.8'W 0.929 35° 76° 269 km 07m09.9s
09:4809°36.5'N020°20.6'W07°09.0'N020°23.7'W08°23.0'N020°21.4'W 0.929 37° 76° 268 km 07m14.9s
09:5009°45.3'N019°15.9'W07°18.4'N019°20.3'W08°32.1'N019°17.5'W 0.929 38° 76° 267 km 07m19.7s
09:5209°52.9'N018°14.2'W07°26.7'N018°20.0'W08°40.1'N018°16.5'W 0.930 40° 76° 266 km 07m24.5s
09:5409°59.6'N017°15.2'W07°33.9'N017°22.2'W08°47.0'N017°18.2'W 0.930 41° 76° 265 km 07m29.1s
09:5610°05.3'N016°18.6'W07°40.2'N016°26.9'W08°53.0'N016°22.3'W 0.930 43° 76° 264 km 07m33.6s
09:5810°10.1'N015°24.1'W07°45.7'N015°33.8'W08°58.2'N015°28.5'W 0.930 44° 76° 264 km 07m38.0s
10:0010°14.2'N014°31.6'W07°50.3'N014°42.5'W09°02.5'N014°36.7'W 0.931 45° 76° 263 km 07m42.2s
10:0210°17.5'N013°40.9'W07°54.2'N013°53.1'W09°06.1'N013°46.6'W 0.931 47° 76° 262 km 07m46.4s
10:0410°20.2'N012°51.9'W07°57.4'N013°05.3'W09°09.0'N012°58.2'W 0.931 48° 76° 261 km 07m50.5s
10:0610°22.1'N012°04.3'W07°59.9'N012°19.0'W09°11.2'N012°11.3'W 0.931 49° 76° 261 km 07m54.4s
10:0810°23.5'N011°18.2'W08°01.8'N011°34.1'W09°12.9'N011°25.8'W 0.932 50° 76° 260 km 07m58.3s
10:1010°24.3'N010°33.3'W08°03.1'N010°50.5'W09°13.9'N010°41.6'W 0.932 51° 76° 260 km 08m02.1s
10:1210°24.5'N009°49.6'W08°03.8'N010°08.1'W09°14.4'N009°58.6'W 0.932 53° 75° 259 km 08m05.7s
10:1410°24.2'N009°07.1'W08°04.0'N009°26.7'W09°14.3'N009°16.7'W 0.932 54° 75° 259 km 08m09.3s
10:1610°23.3'N008°25.6'W08°03.7'N008°46.5'W09°13.7'N008°35.8'W 0.932 55° 75° 258 km 08m12.7s
10:1810°22.0'N007°45.1'W08°02.9'N008°07.1'W09°12.7'N007°55.9'W 0.932 56° 75° 258 km 08m16.0s
10:2010°20.2'N007°05.5'W08°01.6'N007°28.7'W09°11.1'N007°16.9'W 0.933 57° 74° 257 km 08m19.3s
10:2210°18.0'N006°26.7'W07°59.9'N006°51.1'W09°09.2'N006°38.8'W 0.933 58° 74° 257 km 08m22.4s
10:2410°15.3'N005°48.8'W07°57.7'N006°14.4'W09°06.7'N006°01.4'W 0.933 59° 74° 256 km 08m25.4s
10:2610°12.2'N005°11.6'W07°55.2'N005°38.3'W09°03.9'N005°24.8'W 0.933 60° 73° 256 km 08m28.3s
10:2810°08.7'N004°35.2'W07°52.2'N005°03.0'W09°00.7'N004°49.0'W 0.933 61° 73° 256 km 08m31.1s
10:3010°04.8'N003°59.4'W07°48.8'N004°28.3'W08°57.0'N004°13.8'W 0.933 62° 72° 255 km 08m33.7s
10:3210°00.5'N003°24.3'W07°45.0'N003°54.3'W08°53.0'N003°39.2'W 0.933 63° 72° 255 km 08m36.3s
10:3409°55.9'N002°49.7'W07°40.8'N003°20.9'W08°48.6'N003°05.2'W 0.933 64° 71° 254 km 08m38.7s
10:3609°50.9'N002°15.7'W07°36.3'N002°48.0'W08°43.8'N002°31.8'W 0.934 65° 70° 254 km 08m41.0s
10:3809°45.5'N001°42.3'W07°31.4'N002°15.6'W08°38.7'N001°58.9'W 0.934 66° 69° 254 km 08m43.2s
10:4009°39.7'N001°09.4'W07°26.2'N001°43.7'W08°33.2'N001°26.5'W 0.934 67° 68° 253 km 08m45.3s
10:4209°33.7'N000°36.9'W07°20.6'N001°12.3'W08°27.4'N000°54.6'W 0.934 68° 67° 253 km 08m47.2s
10:4409°27.3'N000°04.9'W07°14.7'N000°41.3'W08°21.2'N000°23.1'W 0.934 69° 66° 253 km 08m49.1s
10:4609°20.6'N000°26.7'E07°08.5'N000°10.8'W08°14.7'N000°08.0'E 0.934 70° 65° 252 km 08m50.7s
10:4809°13.5'N000°57.8'E07°01.9'N000°19.4'E08°07.9'N000°38.6'E 0.934 71° 64° 252 km 08m52.3s
10:5009°06.1'N001°28.6'E06°55.1'N000°49.2'E08°00.8'N001°08.9'E 0.934 71° 62° 252 km 08m53.8s
10:5208°58.5'N001°59.0'E06°47.9'N001°18.7'E07°53.4'N001°38.9'E 0.934 72° 61° 252 km 08m55.1s
10:5408°50.5'N002°29.1'E06°40.4'N001°47.8'E07°45.7'N002°08.5'E 0.934 73° 59° 251 km 08m56.3s
10:5608°42.2'N002°58.9'E06°32.6'N002°16.7'E07°37.6'N002°37.8'E 0.934 74° 57° 251 km 08m57.3s
10:5808°33.6'N003°28.4'E06°24.5'N002°45.3'E07°29.3'N003°06.8'E 0.934 75° 55° 251 km 08m58.3s
11:0008°24.8'N003°57.6'E06°16.1'N003°13.6'E07°20.7'N003°35.5'E 0.934 75° 52° 250 km 08m59.1s
11:0208°15.6'N004°26.5'E06°07.4'N003°41.6'E07°11.7'N004°04.0'E 0.934 76° 50° 250 km 08m59.8s
11:0408°06.1'N004°55.3'E05°58.5'N004°09.5'E07°02.5'N004°32.3'E 0.934 76° 47° 250 km 09m00.4s
11:0607°56.4'N005°23.7'E05°49.2'N004°37.1'E06°53.0'N005°00.4'E 0.934 77° 43° 250 km 09m00.8s
11:0807°46.4'N005°52.0'E05°39.6'N005°04.5'E06°43.2'N005°28.2'E 0.934 78° 40° 249 km 09m01.1s
11:1007°36.1'N006°20.1'E05°29.8'N005°31.8'E06°33.2'N005°55.9'E 0.935 78° 36° 249 km 09m01.3s
11:1207°25.5'N006°48.0'E05°19.7'N005°58.9'E06°22.8'N006°23.4'E 0.935 78° 32° 249 km 09m01.4s
11:1407°14.7'N007°15.8'E05°09.3'N006°25.9'E06°12.2'N006°50.8'E 0.935 79° 27° 249 km 09m01.3s
11:1607°03.6'N007°43.4'E04°58.6'N006°52.7'E06°01.3'N007°18.0'E 0.935 79° 23° 249 km 09m01.1s
11:1806°52.2'N008°11.0'E04°47.6'N007°19.5'E05°50.1'N007°45.1'E 0.935 79° 18° 248 km 09m00.9s
11:2006°40.5'N008°38.4'E04°36.4'N007°46.1'E05°38.7'N008°12.2'E 0.935 79° 13° 248 km 09m00.4s
11:2206°28.6'N009°05.7'E04°24.8'N008°12.7'E05°26.9'N008°39.1'E 0.935 79° 248 km 08m59.9s
11:2406°16.4'N009°33.0'E04°13.0'N008°39.2'E05°14.9'N009°06.0'E 0.935 79° 248 km 08m59.3s
11:2606°03.9'N010°00.2'E04°00.9'N009°05.7'E05°02.6'N009°32.8'E 0.935 79° 358° 248 km 08m58.5s
11:2805°51.1'N010°27.3'E03°48.6'N009°32.2'E04°50.1'N009°59.6'E 0.935 79° 354° 248 km 08m57.7s
11:3005°38.1'N010°54.5'E03°35.9'N009°58.7'E04°37.2'N010°26.4'E 0.934 78° 349° 248 km 08m56.7s
11:3205°24.8'N011°21.6'E03°23.0'N010°25.1'E04°24.1'N010°53.2'E 0.934 78° 345° 248 km 08m55.6s
11:3405°11.2'N011°48.7'E03°09.7'N010°51.6'E04°10.7'N011°20.1'E 0.934 77° 342° 248 km 08m54.5s
11:3604°57.4'N012°15.9'E02°56.2'N011°18.1'E03°57.0'N011°46.9'E 0.934 77° 338° 248 km 08m53.2s
11:3804°43.3'N012°43.1'E02°42.4'N011°44.7'E03°43.1'N012°13.8'E 0.934 76° 335° 247 km 08m51.8s
11:4004°28.9'N013°10.4'E02°28.3'N012°11.4'E03°28.8'N012°40.8'E 0.934 76° 332° 247 km 08m50.3s
11:4204°14.2'N013°37.8'E02°13.9'N012°38.2'E03°14.3'N013°07.9'E 0.934 75° 329° 247 km 08m48.8s
11:4403°59.2'N014°05.3'E01°59.2'N013°05.1'E02°59.4'N013°35.1'E 0.934 74° 327° 248 km 08m47.1s
11:4603°44.0'N014°32.9'E01°44.2'N013°32.1'E02°44.3'N014°02.4'E 0.934 73° 325° 248 km 08m45.3s
11:4803°28.4'N015°00.7'E01°28.9'N013°59.3'E02°28.9'N014°29.9'E 0.934 73° 323° 248 km 08m43.5s
11:5003°12.6'N015°28.6'E01°13.3'N014°26.7'E02°13.2'N014°57.5'E 0.934 72° 321° 248 km 08m41.6s
11:5202°56.5'N015°56.7'E00°57.4'N014°54.2'E01°57.2'N015°25.3'E 0.934 71° 319° 248 km 08m39.6s
11:5402°40.0'N016°25.0'E00°41.2'N015°22.0'E01°40.8'N015°53.4'E 0.934 70° 318° 248 km 08m37.5s
11:5602°23.3'N016°53.6'E00°24.6'N015°50.1'E01°24.2'N016°21.7'E 0.934 69° 316° 248 km 08m35.3s
11:5802°06.3'N017°22.4'E00°07.7'N016°18.4'E01°07.2'N016°50.2'E 0.934 68° 315° 248 km 08m33.0s
12:0001°48.9'N017°51.5'E00°09.5'S016°47.0'E00°49.9'N017°19.1'E 0.934 68° 314° 249 km 08m30.7s
12:0201°31.2'N018°20.9'E00°27.1'S017°15.9'E00°32.3'N017°48.2'E 0.934 67° 313° 249 km 08m28.3s
12:0401°13.2'N018°50.6'E00°45.0'S017°45.2'E00°14.3'N018°17.7'E 0.933 66° 312° 249 km 08m25.8s
12:0600°54.9'N019°20.7'E01°03.3'S018°14.8'E00°04.0'S018°47.6'E 0.933 65° 311° 250 km 08m23.2s
12:0800°36.2'N019°51.3'E01°21.9'S018°44.9'E00°22.7'S019°17.9'E 0.933 64° 310° 250 km 08m20.6s
12:1000°17.1'N020°22.2'E01°40.9'S019°15.4'E00°41.7'S019°48.6'E 0.933 63° 309° 250 km 08m17.9s
12:1200°02.3'S020°53.7'E02°00.4'S019°46.4'E01°01.1'S020°19.9'E 0.933 62° 309° 251 km 08m15.1s
12:1400°22.1'S021°25.6'E02°20.2'S020°18.0'E01°20.9'S020°51.6'E 0.933 61° 308° 251 km 08m12.3s
12:1600°42.2'S021°58.1'E02°40.4'S020°50.1'E01°41.1'S021°23.9'E 0.933 60° 307° 252 km 08m09.4s
12:1801°02.8'S022°31.3'E03°01.0'S021°22.8'E02°01.7'S021°56.8'E 0.933 59° 307° 252 km 08m06.5s
12:2001°23.8'S023°05.0'E03°22.1'S021°56.1'E02°22.8'S022°30.4'E 0.932 58° 306° 253 km 08m03.5s
12:2201°45.2'S023°39.5'E03°43.7'S022°30.2'E02°44.2'S023°04.6'E 0.932 57° 305° 253 km 08m00.4s
12:2402°07.0'S024°14.7'E04°05.7'S023°05.1'E03°06.2'S023°39.7'E 0.932 56° 305° 254 km 07m57.2s
12:2602°29.4'S024°50.7'E04°28.2'S023°40.8'E03°28.6'S024°15.5'E 0.932 54° 304° 254 km 07m54.0s
12:2802°52.2'S025°27.7'E04°51.3'S024°17.4'E03°51.5'S024°52.3'E 0.932 53° 304° 255 km 07m50.8s
12:3003°15.5'S026°05.6'E05°14.8'S024°55.0'E04°14.9'S025°30.0'E 0.932 52° 303° 256 km 07m47.5s
12:3203°39.3'S026°44.5'E05°39.0'S025°33.6'E04°38.9'S026°08.8'E 0.931 51° 303° 256 km 07m44.1s
12:3404°03.7'S027°24.6'E06°03.7'S026°13.4'E05°03.5'S026°48.7'E 0.931 50° 302° 257 km 07m40.6s
12:3604°28.7'S028°05.9'E06°29.1'S026°54.5'E05°28.7'S027°29.9'E 0.931 49° 302° 258 km 07m37.1s
12:3804°54.3'S028°48.6'E06°55.1'S027°36.9'E05°54.5'S028°12.4'E 0.931 47° 302° 259 km 07m33.6s
12:4005°20.6'S029°32.8'E07°21.9'S028°20.9'E06°21.0'S028°56.5'E 0.931 46° 301° 260 km 07m29.9s
12:4205°47.6'S030°18.5'E07°49.4'S029°06.5'E06°48.3'S029°42.1'E 0.930 45° 301° 261 km 07m26.2s
12:4406°15.4'S031°06.1'E08°17.8'S029°53.9'E07°16.3'S030°29.6'E 0.930 43° 300° 262 km 07m22.5s
12:4606°44.0'S031°55.7'E08°47.0'S030°43.4'E07°45.2'S031°19.1'E 0.930 42° 300° 263 km 07m18.6s
12:4807°13.5'S032°47.5'E09°17.1'S031°35.1'E08°15.0'S032°10.9'E 0.930 41° 300° 264 km 07m14.7s
12:5007°43.9'S033°41.8'E09°48.3'S032°29.3'E08°45.8'S033°05.1'E 0.929 39° 299° 265 km 07m10.7s
12:5208°15.4'S034°38.9'E10°20.7'S033°26.4'E09°17.8'S034°02.1'E 0.929 38° 299° 266 km 07m06.6s
12:5408°48.1'S035°39.1'E10°54.3'S034°26.7'E09°50.9'S035°02.4'E 0.929 36° 298° 268 km 07m02.4s
12:5609°22.2'S036°43.0'E11°29.5'S035°30.7'E10°25.5'S036°06.3'E 0.928 34° 298° 269 km 06m58.1s
12:5809°57.7'S037°51.1'E12°06.2'S036°39.1'E11°01.5'S037°14.4'E 0.928 33° 297° 271 km 06m53.7s
13:0010°35.0'S039°04.1'E12°44.6'S037°52.4'E11°39.4'S038°27.6'E 0.928 31° 297° 272 km 06m49.1s
13:0211°14.3'S040°23.0'E13°25.4'S039°11.9'E12°19.4'S039°46.6'E 0.927 29° 297° 274 km 06m44.3s
13:0411°55.9'S041°49.0'E14°08.6'S040°38.7'E13°01.8'S041°12.9'E 0.927 27° 296° 276 km 06m39.4s
13:0612°40.5'S043°24.0'E14°55.0'S042°14.7'E13°47.3'S042°48.3'E 0.926 25° 295° 278 km 06m34.2s
13:0813°28.8'S045°10.4'E15°45.5'S044°02.7'E14°36.6'S044°35.3'E 0.926 22° 295° 280 km 06m28.7s
13:1014°22.0'S047°12.5'E16°41.4'S046°07.2'E15°31.0'S046°38.3'E 0.925 20° 294° 282 km 06m22.7s
13:1215°22.3'S049°37.5'E17°45.2'S048°36.0'E16°32.9'S049°04.8'E 0.924 17° 293° 285 km 06m16.1s
13:1416°34.0'S052°40.5'E19°02.1'S051°46.5'E17°46.9'S052°10.7'E 0.923 13° 292° 289 km 06m08.5s
13:1618°11.0'S057°08.8'E20°49.9'S056°37.3'E19°28.3'S056°47.4'E 0.922 290° 294 km 05m58.4s
Limits20°41.6'S065°06.6'E23°19.1'S064°17.2'E22°00.2'S064°41.8'E 0.920 - 303 km 05m44.0s

ΔT = 26937.8 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse18:49:31.811:20:34.105°35.4'N104°13.1'W 79.2° 11.6° 248.3 km09m00.31s
Greatest Duration18:41:05.811:12:08.006°22.1'N006°25.2'E 78.4° 31.5° 249.0 km09m01.37s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Annular Solar Eclipse of -1091 Aug 20

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 -1091 Aug 20 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 26937.8 seconds for this eclipse. The uncertainty in ΔT is 809.9 seconds corresponding to a standard error in longitude of the eclipse path of ± 3.38°.

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.