Path of the Total Solar Eclipse of 1981 Jul 31
Fred Espenak
Introduction
The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of 1981 Jul 31 . 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 1981 Jul 31 | |||||||||||
| 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 | 42°14.0'N | 039°33.7'E | 41°48.5'N | 039°58.7'E | 42°01.3'N | 039°46.2'E | 1.012 | 0° | - | 57 km | 00m39.7s |
| 02:18 | - | - | 43°53.9'N | 046°08.7'E | 43°18.0'N | 043°27.8'E | 1.013 | 3° | 68° | 61 km | 00m43.5s |
| 02:20 | 46°13.2'N | 051°06.6'E | 46°22.0'N | 053°43.9'E | 46°18.7'N | 052°27.2'E | 1.015 | 10° | 74° | 71 km | 00m53.3s |
| 02:22 | 47°54.1'N | 056°18.3'E | 47°48.9'N | 058°27.6'E | 47°52.1'N | 057°23.8'E | 1.017 | 14° | 78° | 76 km | 00m59.0s |
| 02:24 | 49°07.9'N | 060°19.3'E | 48°55.0'N | 062°15.5'E | 49°01.9'N | 061°18.1'E | 1.018 | 17° | 82° | 79 km | 01m03.6s |
| 02:26 | 50°07.6'N | 063°45.2'E | 49°49.1'N | 065°33.2'E | 49°58.7'N | 064°39.8'E | 1.018 | 20° | 85° | 82 km | 01m07.6s |
| 02:28 | 50°57.9'N | 066°49.4'E | 50°35.1'N | 068°31.2'E | 50°46.8'N | 067°40.9'E | 1.019 | 22° | 88° | 84 km | 01m11.2s |
| 02:30 | 51°41.4'N | 069°38.6'E | 51°15.0'N | 071°15.4'E | 51°28.5'N | 070°27.5'E | 1.019 | 24° | 91° | 86 km | 01m14.5s |
| 02:32 | 52°19.6'N | 072°16.6'E | 51°50.0'N | 073°49.0'E | 52°05.1'N | 073°03.3'E | 1.020 | 26° | 94° | 88 km | 01m17.5s |
| 02:34 | 52°53.5'N | 074°46.0'E | 52°21.1'N | 076°14.5'E | 52°37.5'N | 075°30.8'E | 1.020 | 28° | 96° | 90 km | 01m20.4s |
| 02:36 | 53°23.7'N | 077°08.5'E | 52°48.8'N | 078°33.2'E | 53°06.4'N | 077°51.4'E | 1.021 | 30° | 99° | 91 km | 01m23.1s |
| 02:38 | 53°50.7'N | 079°25.3'E | 53°13.5'N | 080°46.4'E | 53°32.2'N | 080°06.4'E | 1.021 | 31° | 102° | 92 km | 01m25.6s |
| 02:40 | 54°14.8'N | 081°37.3'E | 53°35.5'N | 082°54.9'E | 53°55.3'N | 082°16.6'E | 1.022 | 33° | 104° | 94 km | 01m28.0s |
| 02:42 | 54°36.4'N | 083°45.3'E | 53°55.2'N | 084°59.3'E | 54°16.0'N | 084°22.8'E | 1.022 | 34° | 107° | 95 km | 01m30.4s |
| 02:44 | 54°55.8'N | 085°49.6'E | 54°12.7'N | 087°00.1'E | 54°34.4'N | 086°25.3'E | 1.022 | 35° | 109° | 96 km | 01m32.6s |
| 02:46 | 55°12.9'N | 087°50.7'E | 54°28.3'N | 088°57.7'E | 54°50.7'N | 088°24.7'E | 1.023 | 37° | 112° | 97 km | 01m34.7s |
| 02:48 | 55°28.1'N | 089°49.0'E | 54°42.0'N | 090°52.5'E | 55°05.2'N | 090°21.3'E | 1.023 | 38° | 115° | 98 km | 01m36.7s |
| 02:50 | 55°41.5'N | 091°44.8'E | 54°53.9'N | 092°44.7'E | 55°17.8'N | 092°15.2'E | 1.023 | 39° | 117° | 98 km | 01m38.6s |
| 02:52 | 55°53.2'N | 093°38.1'E | 55°04.3'N | 094°34.4'E | 55°28.8'N | 094°06.7'E | 1.023 | 40° | 120° | 99 km | 01m40.4s |
| 02:54 | 56°03.2'N | 095°29.3'E | 55°13.1'N | 096°22.0'E | 55°38.2'N | 095°56.1'E | 1.024 | 41° | 122° | 100 km | 01m42.2s |
| 02:56 | 56°11.7'N | 097°18.4'E | 55°20.5'N | 098°07.5'E | 55°46.1'N | 097°43.3'E | 1.024 | 42° | 125° | 100 km | 01m43.9s |
| 02:58 | 56°18.7'N | 099°05.6'E | 55°26.5'N | 099°51.0'E | 55°52.6'N | 099°28.7'E | 1.024 | 43° | 128° | 101 km | 01m45.4s |
| 03:00 | 56°24.3'N | 100°50.9'E | 55°31.2'N | 101°32.7'E | 55°57.8'N | 101°12.2'E | 1.024 | 44° | 130° | 102 km | 01m47.0s |
| 03:02 | 56°28.5'N | 102°34.4'E | 55°34.6'N | 103°12.6'E | 56°01.6'N | 102°53.9'E | 1.024 | 45° | 133° | 102 km | 01m48.4s |
| 03:04 | 56°31.5'N | 104°16.3'E | 55°36.9'N | 104°50.8'E | 56°04.2'N | 104°33.9'E | 1.024 | 46° | 136° | 103 km | 01m49.8s |
| 03:06 | 56°33.2'N | 105°56.6'E | 55°37.9'N | 106°27.4'E | 56°05.6'N | 106°12.3'E | 1.025 | 46° | 138° | 103 km | 01m51.1s |
| 03:08 | 56°33.8'N | 107°35.2'E | 55°37.9'N | 108°02.4'E | 56°05.9'N | 107°49.1'E | 1.025 | 47° | 141° | 104 km | 01m52.3s |
| 03:10 | 56°33.2'N | 109°12.3'E | 55°36.8'N | 109°35.8'E | 56°05.0'N | 109°24.3'E | 1.025 | 48° | 144° | 104 km | 01m53.4s |
| 03:12 | 56°31.5'N | 110°47.9'E | 55°34.7'N | 111°07.9'E | 56°03.1'N | 110°58.1'E | 1.025 | 49° | 147° | 104 km | 01m54.5s |
| 03:14 | 56°28.7'N | 112°22.0'E | 55°31.5'N | 112°38.4'E | 56°00.1'N | 112°30.4'E | 1.025 | 49° | 149° | 105 km | 01m55.5s |
| 03:16 | 56°24.9'N | 113°54.7'E | 55°27.4'N | 114°07.6'E | 55°56.2'N | 114°01.3'E | 1.025 | 50° | 152° | 105 km | 01m56.5s |
| 03:18 | 56°20.1'N | 115°25.9'E | 55°22.4'N | 115°35.4'E | 55°51.2'N | 115°30.8'E | 1.025 | 50° | 155° | 105 km | 01m57.3s |
| 03:20 | 56°14.3'N | 116°55.8'E | 55°16.5'N | 117°01.8'E | 55°45.4'N | 116°58.9'E | 1.025 | 51° | 158° | 106 km | 01m58.1s |
| 03:22 | 56°07.5'N | 118°24.3'E | 55°09.6'N | 118°27.0'E | 55°38.6'N | 118°25.7'E | 1.025 | 51° | 161° | 106 km | 01m58.9s |
| 03:24 | 55°59.9'N | 119°51.4'E | 55°02.0'N | 119°50.9'E | 55°30.9'N | 119°51.2'E | 1.026 | 52° | 163° | 106 km | 01m59.5s |
| 03:26 | 55°51.4'N | 121°17.2'E | 54°53.5'N | 121°13.5'E | 55°22.4'N | 121°15.4'E | 1.026 | 52° | 166° | 106 km | 02m00.1s |
| 03:28 | 55°42.0'N | 122°41.8'E | 54°44.2'N | 122°34.9'E | 55°13.1'N | 122°38.4'E | 1.026 | 53° | 169° | 107 km | 02m00.7s |
| 03:30 | 55°31.8'N | 124°05.0'E | 54°34.1'N | 123°55.2'E | 55°02.9'N | 124°00.1'E | 1.026 | 53° | 172° | 107 km | 02m01.1s |
| 03:32 | 55°20.8'N | 125°27.1'E | 54°23.2'N | 125°14.3'E | 54°52.0'N | 125°20.7'E | 1.026 | 53° | 175° | 107 km | 02m01.5s |
| 03:34 | 55°08.9'N | 126°47.9'E | 54°11.6'N | 126°32.2'E | 54°40.3'N | 126°40.0'E | 1.026 | 54° | 178° | 107 km | 02m01.8s |
| 03:36 | 54°56.4'N | 128°07.5'E | 53°59.3'N | 127°49.1'E | 54°27.8'N | 127°58.3'E | 1.026 | 54° | 181° | 107 km | 02m02.1s |
| 03:38 | 54°43.0'N | 129°26.0'E | 53°46.2'N | 129°04.9'E | 54°14.6'N | 129°15.4'E | 1.026 | 54° | 184° | 107 km | 02m02.3s |
| 03:40 | 54°28.9'N | 130°43.4'E | 53°32.5'N | 130°19.6'E | 54°00.7'N | 130°31.4'E | 1.026 | 54° | 186° | 108 km | 02m02.4s |
| 03:42 | 54°14.1'N | 131°59.7'E | 53°18.1'N | 131°33.4'E | 53°46.1'N | 131°46.4'E | 1.026 | 54° | 189° | 108 km | 02m02.5s |
| 03:44 | 53°58.6'N | 133°14.9'E | 53°03.0'N | 132°46.2'E | 53°30.8'N | 133°00.4'E | 1.026 | 54° | 192° | 108 km | 02m02.4s |
| 03:46 | 53°42.4'N | 134°29.1'E | 52°47.3'N | 133°58.1'E | 53°14.9'N | 134°13.5'E | 1.026 | 54° | 195° | 108 km | 02m02.4s |
| 03:48 | 53°25.5'N | 135°42.3'E | 52°30.9'N | 135°09.1'E | 52°58.3'N | 135°25.6'E | 1.026 | 54° | 198° | 108 km | 02m02.2s |
| 03:50 | 53°08.0'N | 136°54.6'E | 52°13.9'N | 136°19.2'E | 52°41.0'N | 136°36.8'E | 1.026 | 54° | 201° | 108 km | 02m02.0s |
| 03:52 | 52°49.8'N | 138°06.0'E | 51°56.3'N | 137°28.5'E | 52°23.1'N | 137°47.1'E | 1.026 | 54° | 203° | 108 km | 02m01.7s |
| 03:54 | 52°31.0'N | 139°16.5'E | 51°38.1'N | 138°37.1'E | 52°04.6'N | 138°56.6'E | 1.026 | 54° | 206° | 108 km | 02m01.4s |
| 03:56 | 52°11.5'N | 140°26.2'E | 51°19.3'N | 139°44.9'E | 51°45.4'N | 140°05.4'E | 1.026 | 54° | 209° | 108 km | 02m01.0s |
| 03:58 | 51°51.4'N | 141°35.1'E | 50°59.8'N | 140°52.0'E | 51°25.7'N | 141°13.4'E | 1.026 | 54° | 212° | 108 km | 02m00.5s |
| 04:00 | 51°30.7'N | 142°43.3'E | 50°39.8'N | 141°58.5'E | 51°05.3'N | 142°20.7'E | 1.026 | 53° | 214° | 108 km | 02m00.0s |
| 04:02 | 51°09.4'N | 143°50.9'E | 50°19.2'N | 143°04.4'E | 50°44.3'N | 143°27.4'E | 1.025 | 53° | 217° | 108 km | 01m59.4s |
| 04:04 | 50°47.5'N | 144°57.8'E | 49°58.0'N | 144°09.7'E | 50°22.8'N | 144°33.5'E | 1.025 | 53° | 220° | 108 km | 01m58.7s |
| 04:06 | 50°24.9'N | 146°04.1'E | 49°36.2'N | 145°14.6'E | 50°00.6'N | 145°39.1'E | 1.025 | 52° | 222° | 108 km | 01m58.0s |
| 04:08 | 50°01.8'N | 147°09.9'E | 49°13.8'N | 146°19.0'E | 49°37.9'N | 146°44.2'E | 1.025 | 52° | 225° | 107 km | 01m57.2s |
| 04:10 | 49°38.0'N | 148°15.2'E | 48°50.9'N | 147°23.0'E | 49°14.5'N | 147°48.8'E | 1.025 | 51° | 227° | 107 km | 01m56.3s |
| 04:12 | 49°13.7'N | 149°20.1'E | 48°27.3'N | 148°26.6'E | 48°50.6'N | 148°53.1'E | 1.025 | 51° | 229° | 107 km | 01m55.4s |
| 04:14 | 48°48.7'N | 150°24.7'E | 48°03.2'N | 149°30.0'E | 48°26.0'N | 149°57.1'E | 1.025 | 50° | 232° | 107 km | 01m54.4s |
| 04:16 | 48°23.1'N | 151°29.0'E | 47°38.5'N | 150°33.2'E | 48°00.9'N | 151°00.8'E | 1.025 | 50° | 234° | 107 km | 01m53.4s |
| 04:18 | 47°56.9'N | 152°33.1'E | 47°13.2'N | 151°36.2'E | 47°35.1'N | 152°04.4'E | 1.025 | 49° | 236° | 106 km | 01m52.3s |
| 04:20 | 47°30.1'N | 153°37.1'E | 46°47.2'N | 152°39.1'E | 47°08.7'N | 153°07.9'E | 1.024 | 48° | 239° | 106 km | 01m51.1s |
| 04:22 | 47°02.6'N | 154°41.0'E | 46°20.7'N | 153°42.1'E | 46°41.7'N | 154°11.3'E | 1.024 | 48° | 241° | 106 km | 01m49.9s |
| 04:24 | 46°34.4'N | 155°44.9'E | 45°53.5'N | 154°45.1'E | 46°14.1'N | 155°14.8'E | 1.024 | 47° | 243° | 105 km | 01m48.6s |
| 04:26 | 46°05.6'N | 156°49.0'E | 45°25.6'N | 155°48.3'E | 45°45.7'N | 156°18.4'E | 1.024 | 46° | 245° | 105 km | 01m47.2s |
| 04:28 | 45°36.1'N | 157°53.3'E | 44°57.1'N | 156°51.8'E | 45°16.7'N | 157°22.3'E | 1.024 | 46° | 247° | 104 km | 01m45.8s |
| 04:30 | 45°05.9'N | 158°57.9'E | 44°27.9'N | 157°55.6'E | 44°47.0'N | 158°26.5'E | 1.024 | 45° | 249° | 104 km | 01m44.3s |
| 04:32 | 44°34.9'N | 160°02.9'E | 43°57.9'N | 158°59.9'E | 44°16.5'N | 159°31.2'E | 1.023 | 44° | 251° | 103 km | 01m42.7s |
| 04:34 | 44°03.2'N | 161°08.5'E | 43°27.2'N | 160°04.7'E | 43°45.3'N | 160°36.4'E | 1.023 | 43° | 253° | 103 km | 01m41.1s |
| 04:36 | 43°30.6'N | 162°14.8'E | 42°55.8'N | 161°10.3'E | 43°13.3'N | 161°42.3'E | 1.023 | 42° | 255° | 102 km | 01m39.4s |
| 04:38 | 42°57.2'N | 163°22.0'E | 42°23.5'N | 162°16.8'E | 42°40.4'N | 162°49.2'E | 1.023 | 41° | 257° | 101 km | 01m37.6s |
| 04:40 | 42°22.8'N | 164°30.1'E | 41°50.3'N | 163°24.3'E | 42°06.7'N | 163°57.0'E | 1.022 | 40° | 258° | 101 km | 01m35.7s |
| 04:42 | 41°47.5'N | 165°39.5'E | 41°16.2'N | 164°33.0'E | 41°32.0'N | 165°06.1'E | 1.022 | 39° | 260° | 100 km | 01m33.8s |
| 04:44 | 41°11.2'N | 166°50.4'E | 40°41.0'N | 165°43.2'E | 40°56.3'N | 166°16.6'E | 1.022 | 38° | 262° | 99 km | 01m31.8s |
| 04:46 | 40°33.7'N | 168°03.0'E | 40°04.9'N | 166°55.1'E | 40°19.4'N | 167°28.8'E | 1.022 | 36° | 263° | 98 km | 01m29.7s |
| 04:48 | 39°55.1'N | 169°17.5'E | 39°27.5'N | 168°09.0'E | 39°41.4'N | 168°43.1'E | 1.021 | 35° | 265° | 97 km | 01m27.6s |
| 04:50 | 39°15.0'N | 170°34.5'E | 38°48.8'N | 169°25.2'E | 39°02.1'N | 169°59.7'E | 1.021 | 34° | 267° | 95 km | 01m25.3s |
| 04:52 | 38°33.5'N | 171°54.3'E | 38°08.8'N | 170°44.2'E | 38°21.3'N | 171°19.1'E | 1.021 | 32° | 268° | 94 km | 01m23.0s |
| 04:54 | 37°50.3'N | 173°17.5'E | 37°27.1'N | 172°06.4'E | 37°38.9'N | 172°41.8'E | 1.020 | 31° | 270° | 93 km | 01m20.5s |
| 04:56 | 37°05.2'N | 174°44.8'E | 36°43.6'N | 173°32.6'E | 36°54.6'N | 174°08.5'E | 1.020 | 29° | 272° | 91 km | 01m17.9s |
| 04:58 | 36°17.8'N | 176°16.9'E | 35°58.1'N | 175°03.5'E | 36°08.1'N | 175°40.0'E | 1.019 | 28° | 273° | 89 km | 01m15.2s |
| 05:00 | 35°27.8'N | 177°55.2'E | 35°10.0'N | 176°40.3'E | 35°19.1'N | 177°17.6'E | 1.019 | 26° | 275° | 87 km | 01m12.3s |
| 05:02 | 34°34.6'N | 179°41.3'E | 34°19.0'N | 178°24.4'E | 34°27.0'N | 179°02.6'E | 1.018 | 24° | 276° | 85 km | 01m09.2s |
| 05:04 | 33°37.3'N | 178°22.5'W | 33°24.3'N | 179°42.0'W | 33°31.0'N | 179°02.5'W | 1.018 | 22° | 278° | 82 km | 01m05.9s |
| 05:06 | 32°34.7'N | 176°12.4'W | 32°24.8'N | 177°35.6'W | 32°30.0'N | 176°54.3'W | 1.017 | 20° | 280° | 79 km | 01m02.3s |
| 05:08 | 31°24.5'N | 173°42.1'W | 31°18.5'N | 175°11.0'W | 31°21.8'N | 174°26.9'W | 1.016 | 17° | 281° | 76 km | 00m58.3s |
| 05:10 | 30°02.1'N | 170°38.2'W | 30°02.0'N | 172°17.2'W | 30°02.5'N | 171°28.3'W | 1.015 | 14° | 283° | 71 km | 00m53.6s |
| 05:12 | 28°14.3'N | 166°22.5'W | 28°25.9'N | 168°27.1'W | 28°21.0'N | 167°26.5'W | 1.014 | 9° | 286° | 65 km | 00m47.7s |
| Limits | 25°04.3'N | 157°54.6'W | 24°40.5'N | 158°12.4'W | 24°52.4'N | 158°03.5'W | 1.011 | 0° | - | 52 km | 00m35.8s |
ΔT = 51.9 seconds
| Greatest Eclipse and Greatest Duration | ||||||||
| Event | Time TD |
Time UT1 |
Latitude | Longitude | Sun Altitude |
Sun Azimuth |
Path Width | Central Duration |
| Greatest Eclipse | 03:46:36.6 | 03:45:44.7 | 53°17.0'N | 133°51.2'E | 54.3° | 194.6° | 107.8 km | 02m02.38s |
| Greatest Duration | 03:43:31.5 | 03:42:39.6 | 53°41.2'N | 132°11.0'E | 54.3° | 190.2° | 107.7 km | 02m02.46s |
Links for the Total Solar Eclipse of 1981 Jul 31
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
- Thousand Year Canon of Solar Eclipses 1501 to 2500 - link to the publication
Eclipse Predictions
Predictions for the Total Solar Eclipse of 1981 Jul 31 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 51.9 seconds for this eclipse.
Acknowledgments
Some of the content on this website is based on the book Thousand Year Canon of Solar Eclipses 1501 to 2500. 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.