Path of the Annular Solar Eclipse of 1091 May 21
Fred Espenak
Introduction
The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of 1091 May 21 . 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 May 21 | |||||||||||
| UT1 | Northern Limit | Southern Limit | Central Line | M:S | Sun | Sun | Path | Central | |||
| Latitude | Longitude | Latitude | Longitude | Latitude | Longitude | Ratio | Alt. | Azm. | Width | Duration | |
| Limits | 23°02.3'N | 012°04.3'E | 21°19.8'N | 013°32.6'E | 22°10.7'N | 012°49.0'E | 0.956 | 0° | - | 233 km | 02m32.8s |
| 04:28 | - | - | 25°10.8'N | 021°55.5'E | 24°07.5'N | 017°23.4'E | 0.958 | 5° | 69° | 229 km | 02m33.0s |
| 04:30 | 25°59.4'N | 018°53.0'E | 27°03.7'N | 025°22.5'E | 26°41.7'N | 022°35.8'E | 0.959 | 10° | 71° | 223 km | 02m33.2s |
| 04:32 | 28°07.2'N | 023°02.8'E | 28°33.7'N | 027°54.0'E | 28°24.3'N | 025°39.9'E | 0.960 | 14° | 73° | 219 km | 02m33.4s |
| 04:34 | 29°42.3'N | 025°50.9'E | 29°52.0'N | 029°57.9'E | 29°49.2'N | 028°01.3'E | 0.961 | 17° | 75° | 215 km | 02m33.5s |
| 04:36 | 31°03.2'N | 028°04.4'E | 31°02.9'N | 031°44.6'E | 31°04.4'N | 029°59.4'E | 0.962 | 19° | 76° | 211 km | 02m33.6s |
| 04:38 | 32°15.7'N | 029°57.6'E | 32°08.4'N | 033°19.3'E | 32°13.0'N | 031°42.2'E | 0.962 | 21° | 78° | 208 km | 02m33.7s |
| 04:40 | 33°22.4'N | 031°37.2'E | 33°10.0'N | 034°45.3'E | 33°16.9'N | 033°14.3'E | 0.963 | 23° | 79° | 205 km | 02m33.8s |
| 04:42 | 34°24.8'N | 033°06.9'E | 34°08.4'N | 036°04.4'E | 34°17.1'N | 034°38.3'E | 0.963 | 25° | 80° | 202 km | 02m33.9s |
| 04:44 | 35°23.9'N | 034°29.2'E | 35°04.2'N | 037°18.1'E | 35°14.4'N | 035°56.0'E | 0.963 | 26° | 82° | 199 km | 02m34.0s |
| 04:46 | 36°20.2'N | 035°45.7'E | 35°57.8'N | 038°27.5'E | 36°09.3'N | 037°08.6'E | 0.964 | 28° | 83° | 196 km | 02m34.1s |
| 04:48 | 37°14.3'N | 036°57.4'E | 36°49.5'N | 039°33.3'E | 37°02.2'N | 038°17.2'E | 0.964 | 29° | 84° | 193 km | 02m34.2s |
| 04:50 | 38°06.5'N | 038°05.3'E | 37°39.6'N | 040°36.0'E | 37°53.2'N | 039°22.3'E | 0.964 | 31° | 86° | 191 km | 02m34.2s |
| 04:52 | 38°57.0'N | 039°10.0'E | 38°28.2'N | 041°36.3'E | 38°42.8'N | 040°24.7'E | 0.965 | 32° | 87° | 188 km | 02m34.3s |
| 04:54 | 39°46.0'N | 040°12.0'E | 39°15.6'N | 042°34.4'E | 39°31.0'N | 041°24.7'E | 0.965 | 33° | 89° | 186 km | 02m34.4s |
| 04:56 | 40°33.8'N | 041°11.8'E | 40°01.9'N | 043°30.8'E | 40°18.0'N | 042°22.7'E | 0.965 | 34° | 90° | 184 km | 02m34.5s |
| 04:58 | 41°20.4'N | 042°09.7'E | 40°47.1'N | 044°25.6'E | 41°03.8'N | 043°19.0'E | 0.966 | 35° | 92° | 181 km | 02m34.6s |
| 05:00 | 42°06.0'N | 043°06.1'E | 41°31.3'N | 045°19.1'E | 41°48.7'N | 044°13.8'E | 0.966 | 36° | 93° | 179 km | 02m34.7s |
| 05:02 | 42°50.6'N | 044°01.1'E | 42°14.7'N | 046°11.6'E | 42°32.7'N | 045°07.5'E | 0.966 | 37° | 95° | 177 km | 02m34.8s |
| 05:04 | 43°34.4'N | 044°55.0'E | 42°57.3'N | 047°03.2'E | 43°15.9'N | 046°00.3'E | 0.966 | 38° | 96° | 175 km | 02m34.9s |
| 05:06 | 44°17.4'N | 045°48.0'E | 43°39.1'N | 047°54.1'E | 43°58.3'N | 046°52.2'E | 0.966 | 39° | 98° | 173 km | 02m34.9s |
| 05:08 | 44°59.6'N | 046°40.3'E | 44°20.2'N | 048°44.5'E | 44°39.9'N | 047°43.5'E | 0.967 | 40° | 100° | 171 km | 02m35.0s |
| 05:10 | 45°41.1'N | 047°32.0'E | 45°00.7'N | 049°34.4'E | 45°20.9'N | 048°34.3'E | 0.967 | 41° | 101° | 169 km | 02m35.1s |
| 05:12 | 46°22.0'N | 048°23.3'E | 45°40.5'N | 050°24.0'E | 46°01.2'N | 049°24.7'E | 0.967 | 42° | 103° | 168 km | 02m35.2s |
| 05:14 | 47°02.3'N | 049°14.3'E | 46°19.8'N | 051°13.4'E | 46°41.0'N | 050°14.9'E | 0.967 | 42° | 105° | 166 km | 02m35.3s |
| 05:16 | 47°42.0'N | 050°05.2'E | 46°58.4'N | 052°02.8'E | 47°20.2'N | 051°05.0'E | 0.967 | 43° | 106° | 164 km | 02m35.4s |
| 05:18 | 48°21.1'N | 050°56.0'E | 47°36.6'N | 052°52.2'E | 47°58.8'N | 051°55.1'E | 0.967 | 44° | 108° | 163 km | 02m35.4s |
| 05:20 | 48°59.7'N | 051°46.9'E | 48°14.2'N | 053°41.7'E | 48°36.9'N | 052°45.3'E | 0.967 | 44° | 110° | 162 km | 02m35.5s |
| 05:22 | 49°37.8'N | 052°38.0'E | 48°51.3'N | 054°31.5'E | 49°14.5'N | 053°35.7'E | 0.968 | 45° | 112° | 160 km | 02m35.6s |
| 05:24 | 50°15.5'N | 053°29.4'E | 49°27.9'N | 055°21.6'E | 49°51.6'N | 054°26.5'E | 0.968 | 46° | 114° | 159 km | 02m35.7s |
| 05:26 | 50°52.6'N | 054°21.2'E | 50°04.1'N | 056°12.1'E | 50°28.3'N | 055°17.6'E | 0.968 | 46° | 116° | 158 km | 02m35.7s |
| 05:28 | 51°29.3'N | 055°13.5'E | 50°39.8'N | 057°03.1'E | 51°04.5'N | 056°09.3'E | 0.968 | 47° | 118° | 156 km | 02m35.8s |
| 05:30 | 52°05.6'N | 056°06.3'E | 51°15.0'N | 057°54.7'E | 51°40.2'N | 057°01.5'E | 0.968 | 47° | 120° | 155 km | 02m35.9s |
| 05:32 | 52°41.4'N | 056°59.9'E | 51°49.8'N | 058°47.0'E | 52°15.5'N | 057°54.4'E | 0.968 | 47° | 122° | 154 km | 02m36.0s |
| 05:34 | 53°16.7'N | 057°54.2'E | 52°24.2'N | 059°40.1'E | 52°50.3'N | 058°48.1'E | 0.968 | 48° | 124° | 153 km | 02m36.0s |
| 05:36 | 53°51.7'N | 058°49.4'E | 52°58.1'N | 060°34.0'E | 53°24.8'N | 059°42.7'E | 0.968 | 48° | 126° | 152 km | 02m36.1s |
| 05:38 | 54°26.2'N | 059°45.6'E | 53°31.6'N | 061°28.9'E | 53°58.7'N | 060°38.2'E | 0.968 | 49° | 129° | 152 km | 02m36.2s |
| 05:40 | 55°00.3'N | 060°42.9'E | 54°04.6'N | 062°24.8'E | 54°32.3'N | 061°34.8'E | 0.968 | 49° | 131° | 151 km | 02m36.2s |
| 05:42 | 55°33.9'N | 061°41.4'E | 54°37.2'N | 063°21.8'E | 55°05.4'N | 062°32.5'E | 0.968 | 49° | 133° | 150 km | 02m36.3s |
| 05:44 | 56°07.1'N | 062°41.1'E | 55°09.3'N | 064°20.1'E | 55°38.1'N | 063°31.5'E | 0.969 | 49° | 136° | 149 km | 02m36.3s |
| 05:46 | 56°39.9'N | 063°42.3'E | 55°41.0'N | 065°19.6'E | 56°10.3'N | 064°31.9'E | 0.969 | 49° | 138° | 149 km | 02m36.4s |
| 05:48 | 57°12.2'N | 064°44.9'E | 56°12.2'N | 066°20.6'E | 56°42.1'N | 065°33.7'E | 0.969 | 50° | 140° | 148 km | 02m36.4s |
| 05:50 | 57°44.1'N | 065°49.2'E | 56°43.0'N | 067°23.1'E | 57°13.4'N | 066°37.1'E | 0.969 | 50° | 143° | 148 km | 02m36.4s |
| 05:52 | 58°15.5'N | 066°55.2'E | 57°13.2'N | 068°27.1'E | 57°44.2'N | 067°42.1'E | 0.969 | 50° | 145° | 147 km | 02m36.5s |
| 05:54 | 58°46.4'N | 068°03.1'E | 57°43.0'N | 069°32.9'E | 58°14.5'N | 068°48.9'E | 0.969 | 50° | 148° | 147 km | 02m36.5s |
| 05:56 | 59°16.8'N | 069°12.9'E | 58°12.3'N | 070°40.5'E | 58°44.3'N | 069°57.6'E | 0.969 | 50° | 151° | 146 km | 02m36.5s |
| 05:58 | 59°46.7'N | 070°24.8'E | 58°41.0'N | 071°49.9'E | 59°13.6'N | 071°08.3'E | 0.969 | 50° | 153° | 146 km | 02m36.6s |
| 06:00 | 60°16.0'N | 071°38.9'E | 59°09.1'N | 073°01.4'E | 59°42.3'N | 072°21.1'E | 0.969 | 50° | 156° | 146 km | 02m36.6s |
| 06:02 | 60°44.8'N | 072°55.4'E | 59°36.7'N | 074°15.0'E | 60°10.5'N | 073°36.1'E | 0.969 | 50° | 159° | 146 km | 02m36.6s |
| 06:04 | 61°13.0'N | 074°14.4'E | 60°03.7'N | 075°30.9'E | 60°38.1'N | 074°53.5'E | 0.969 | 50° | 161° | 145 km | 02m36.6s |
| 06:06 | 61°40.5'N | 075°36.0'E | 60°30.0'N | 076°49.1'E | 61°05.0'N | 076°13.3'E | 0.969 | 49° | 164° | 145 km | 02m36.6s |
| 06:08 | 62°07.4'N | 077°00.3'E | 60°55.7'N | 078°09.7'E | 61°31.2'N | 077°35.8'E | 0.969 | 49° | 167° | 145 km | 02m36.6s |
| 06:10 | 62°33.5'N | 078°27.5'E | 61°20.7'N | 079°33.0'E | 61°56.8'N | 079°01.0'E | 0.969 | 49° | 170° | 145 km | 02m36.6s |
| 06:12 | 62°59.0'N | 079°57.8'E | 61°44.9'N | 080°58.9'E | 62°21.6'N | 080°29.0'E | 0.969 | 49° | 172° | 145 km | 02m36.6s |
| 06:14 | 63°23.6'N | 081°31.2'E | 62°08.4'N | 082°27.6'E | 62°45.7'N | 082°00.0'E | 0.969 | 48° | 175° | 145 km | 02m36.5s |
| 06:16 | 63°47.4'N | 083°08.0'E | 62°31.0'N | 083°59.2'E | 63°08.9'N | 083°34.1'E | 0.969 | 48° | 178° | 146 km | 02m36.5s |
| 06:18 | 64°10.3'N | 084°48.2'E | 62°52.8'N | 085°33.8'E | 63°31.2'N | 085°11.5'E | 0.968 | 48° | 181° | 146 km | 02m36.5s |
| 06:20 | 64°32.3'N | 086°32.0'E | 63°13.7'N | 087°11.5'E | 63°52.6'N | 086°52.1'E | 0.968 | 47° | 184° | 146 km | 02m36.4s |
| 06:22 | 64°53.2'N | 088°19.5'E | 63°33.6'N | 088°52.5'E | 64°13.0'N | 088°36.3'E | 0.968 | 47° | 187° | 147 km | 02m36.4s |
| 06:24 | 65°13.1'N | 090°10.8'E | 63°52.4'N | 090°36.8'E | 64°32.4'N | 090°23.9'E | 0.968 | 46° | 190° | 147 km | 02m36.3s |
| 06:26 | 65°31.8'N | 092°06.1'E | 64°10.2'N | 092°24.4'E | 64°50.6'N | 092°15.3'E | 0.968 | 46° | 193° | 147 km | 02m36.2s |
| 06:28 | 65°49.2'N | 094°05.4'E | 64°26.8'N | 094°15.5'E | 65°07.6'N | 094°10.3'E | 0.968 | 45° | 197° | 148 km | 02m36.2s |
| 06:30 | 66°05.4'N | 096°08.9'E | 64°42.1'N | 096°10.2'E | 65°23.3'N | 096°09.2'E | 0.968 | 45° | 200° | 149 km | 02m36.1s |
| 06:32 | 66°20.1'N | 098°16.5'E | 64°56.2'N | 098°08.4'E | 65°37.7'N | 098°12.0'E | 0.968 | 44° | 203° | 149 km | 02m36.0s |
| 06:34 | 66°33.3'N | 100°28.4'E | 65°08.8'N | 100°10.3'E | 65°50.7'N | 100°18.7'E | 0.968 | 44° | 206° | 150 km | 02m35.9s |
| 06:36 | 66°44.9'N | 102°44.5'E | 65°20.0'N | 102°15.8'E | 66°02.1'N | 102°29.3'E | 0.968 | 43° | 209° | 151 km | 02m35.8s |
| 06:38 | 66°54.9'N | 105°04.9'E | 65°29.6'N | 104°25.0'E | 66°11.8'N | 104°43.8'E | 0.967 | 42° | 213° | 152 km | 02m35.7s |
| 06:40 | 67°02.9'N | 107°29.6'E | 65°37.6'N | 106°37.8'E | 66°19.8'N | 107°02.3'E | 0.967 | 41° | 216° | 153 km | 02m35.5s |
| 06:42 | 67°09.1'N | 109°58.5'E | 65°43.8'N | 108°54.2'E | 66°26.0'N | 109°24.6'E | 0.967 | 41° | 219° | 154 km | 02m35.4s |
| 06:44 | 67°13.1'N | 112°31.4'E | 65°48.1'N | 111°14.2'E | 66°30.2'N | 111°50.8'E | 0.967 | 40° | 223° | 155 km | 02m35.3s |
| 06:46 | 67°15.0'N | 115°08.4'E | 65°50.4'N | 113°37.7'E | 66°32.3'N | 114°20.8'E | 0.967 | 39° | 226° | 156 km | 02m35.1s |
| 06:48 | 67°14.5'N | 117°49.4'E | 65°50.7'N | 116°04.7'E | 66°32.2'N | 116°54.4'E | 0.967 | 38° | 230° | 157 km | 02m35.0s |
| 06:50 | 67°11.5'N | 120°34.1'E | 65°48.7'N | 118°35.0'E | 66°29.8'N | 119°31.6'E | 0.966 | 37° | 233° | 159 km | 02m34.8s |
| 06:52 | 67°05.8'N | 123°22.5'E | 65°44.4'N | 121°08.6'E | 66°24.9'N | 122°12.3'E | 0.966 | 36° | 237° | 160 km | 02m34.6s |
| 06:54 | 66°57.4'N | 126°14.4'E | 65°37.6'N | 123°45.3'E | 66°17.3'N | 124°56.3'E | 0.966 | 35° | 240° | 162 km | 02m34.4s |
| 06:56 | 66°45.9'N | 129°09.8'E | 65°28.1'N | 126°25.2'E | 66°06.9'N | 127°43.6'E | 0.966 | 34° | 244° | 164 km | 02m34.2s |
| 06:58 | 66°31.2'N | 132°08.6'E | 65°15.8'N | 129°08.2'E | 65°53.5'N | 130°34.2'E | 0.966 | 33° | 247° | 166 km | 02m34.0s |
| 07:00 | 66°13.1'N | 135°10.7'E | 65°00.6'N | 131°54.3'E | 65°36.9'N | 133°28.0'E | 0.965 | 32° | 251° | 168 km | 02m33.8s |
| 07:02 | 65°51.2'N | 138°16.3'E | 64°42.0'N | 134°43.6'E | 65°16.9'N | 136°25.1'E | 0.965 | 30° | 254° | 170 km | 02m33.6s |
| 07:04 | 65°25.3'N | 141°25.7'E | 64°20.1'N | 137°36.1'E | 64°53.0'N | 139°25.7'E | 0.965 | 29° | 258° | 172 km | 02m33.3s |
| 07:06 | 64°54.8'N | 144°39.3'E | 63°54.3'N | 140°32.3'E | 64°25.1'N | 142°30.2'E | 0.964 | 28° | 262° | 175 km | 02m33.1s |
| 07:08 | 64°19.4'N | 147°57.7'E | 63°24.4'N | 143°32.5'E | 63°52.6'N | 145°39.0'E | 0.964 | 26° | 265° | 178 km | 02m32.8s |
| 07:10 | 63°38.2'N | 151°22.2'E | 62°49.8'N | 146°37.3'E | 63°15.0'N | 148°53.2'E | 0.964 | 24° | 269° | 181 km | 02m32.5s |
| 07:12 | 62°50.2'N | 154°54.5'E | 62°09.8'N | 149°47.9'E | 62°31.4'N | 152°14.0'E | 0.963 | 23° | 273° | 184 km | 02m32.3s |
| 07:14 | 61°54.0'N | 158°37.6'E | 61°23.7'N | 153°05.9'E | 61°40.7'N | 155°43.6'E | 0.963 | 21° | 277° | 188 km | 02m31.9s |
| 07:16 | 60°47.1'N | 162°36.6'E | 60°30.1'N | 156°33.7'E | 60°41.2'N | 159°25.4'E | 0.962 | 19° | 280° | 192 km | 02m31.6s |
| 07:18 | 59°24.8'N | 167°01.1'E | 59°26.9'N | 160°15.6'E | 59°29.9'N | 163°25.6'E | 0.962 | 16° | 285° | 197 km | 02m31.2s |
| 07:20 | 57°36.9'N | 172°13.5'E | 58°10.5'N | 164°18.9'E | 58°01.1'N | 167°56.3'E | 0.961 | 13° | 289° | 203 km | 02m30.8s |
| 07:22 | 54°42.6'N | 179°44.6'E | 56°33.4'N | 168°59.6'E | 56°00.2'N | 173°29.1'E | 0.960 | 9° | 294° | 211 km | 02m30.3s |
| 07:24 | - | - | 54°13.1'N | 175°06.5'E | 51°36.4'N | 175°49.5'W | 0.958 | 2° | 303° | 226 km | 02m29.5s |
| Limits | 51°27.9'N | 172°38.2'W | 49°59.0'N | 174°56.7'W | 50°43.3'N | 173°48.8'W | 0.957 | 0° | - | 228 km | 02m29.3s |
ΔT = 1113.4 seconds
| Greatest Eclipse and Greatest Duration | ||||||||
| Event | Time TD |
Time UT1 |
Latitude | Longitude | Sun Altitude |
Sun Azimuth |
Path Width | Central Duration |
| Greatest Eclipse | 06:14:26.7 | 05:55:53.3 | 58°42.7'N | 065°14.6'E | 49.9° | 150.5° | 146.3 km | 02m36.54s |
| Greatest Duration | 06:23:19.3 | 06:04:45.9 | 60°48.4'N | 075°23.8'E | 49.5° | 162.3° | 145.4 km | 02m36.59s |
Links for the Annular Solar Eclipse of 1091 May 21
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Eclipse Predictions
Predictions for the Annular Solar Eclipse of 1091 May 21 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 1113.4 seconds for this eclipse. The uncertainty in ΔT is 42.5 seconds corresponding to a standard error in longitude of the eclipse path of ± 0.18°.
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.