Path of the Annular Solar Eclipse of -1718 Oct 21
Fred Espenak
Introduction
The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of -1718 Oct 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 -1718 Oct 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 | 77°46.1'N | 070°23.1'W | 84°12.2'N | 107°30.7'W | 81°47.5'N | 082°52.7'W | 0.904 | 0° | - | 921 km | 07m16.6s |
| 20:44 | - | - | 70°34.2'N | 115°39.1'W | 79°00.8'N | 096°16.7'W | 0.904 | 4° | 216° | 879 km | 07m25.0s |
| 20:46 | - | - | 68°52.8'N | 115°05.0'W | 75°20.3'N | 102°52.4'W | 0.905 | 7° | 210° | 839 km | 07m34.5s |
| 20:48 | - | - | 67°21.1'N | 114°30.6'W | 72°51.7'N | 104°47.7'W | 0.906 | 10° | 209° | 818 km | 07m40.6s |
| 20:50 | - | - | 65°56.6'N | 113°56.8'W | 70°50.6'N | 105°36.2'W | 0.906 | 11° | 209° | 805 km | 07m45.4s |
| 20:52 | - | - | 64°37.9'N | 113°23.6'W | 69°05.5'N | 105°56.4'W | 0.907 | 13° | 209° | 795 km | 07m49.4s |
| 20:54 | 74°23.4'N | 086°50.0'W | 63°24.0'N | 112°51.3'W | 67°31.4'N | 106°01.8'W | 0.907 | 14° | 210° | 788 km | 07m52.9s |
| 20:56 | 71°52.1'N | 091°45.2'W | 62°14.0'N | 112°19.7'W | 66°05.4'N | 105°58.5'W | 0.907 | 15° | 211° | 784 km | 07m56.0s |
| 20:58 | 69°53.6'N | 094°02.5'W | 61°07.4'N | 111°48.9'W | 64°45.6'N | 105°49.7'W | 0.908 | 16° | 212° | 781 km | 07m58.8s |
| 21:00 | 68°11.6'N | 095°20.2'W | 60°03.7'N | 111°18.7'W | 63°30.9'N | 105°37.1'W | 0.908 | 17° | 213° | 779 km | 08m01.3s |
| 21:02 | 66°40.6'N | 096°06.8'W | 59°02.6'N | 110°49.1'W | 62°20.4'N | 105°21.8'W | 0.908 | 18° | 214° | 779 km | 08m03.6s |
| 21:04 | 65°17.4'N | 096°34.8'W | 58°03.8'N | 110°20.0'W | 61°13.6'N | 105°04.6'W | 0.908 | 19° | 215° | 780 km | 08m05.6s |
| 21:06 | 64°00.3'N | 096°50.6'W | 57°07.0'N | 109°51.3'W | 60°09.8'N | 104°45.9'W | 0.908 | 19° | 216° | 782 km | 08m07.5s |
| 21:08 | 62°48.2'N | 096°57.6'W | 56°12.1'N | 109°22.9'W | 59°08.7'N | 104°25.9'W | 0.908 | 20° | 217° | 785 km | 08m09.2s |
| 21:10 | 61°40.1'N | 096°58.3'W | 55°18.9'N | 108°54.8'W | 58°10.0'N | 104°05.0'W | 0.909 | 21° | 218° | 788 km | 08m10.7s |
| 21:12 | 60°35.5'N | 096°54.0'W | 54°27.2'N | 108°26.8'W | 57°13.4'N | 103°43.1'W | 0.909 | 21° | 219° | 793 km | 08m12.0s |
| 21:14 | 59°33.9'N | 096°45.8'W | 53°36.9'N | 107°59.0'W | 56°18.8'N | 103°20.5'W | 0.909 | 21° | 220° | 798 km | 08m13.2s |
| 21:16 | 58°35.0'N | 096°34.3'W | 52°47.9'N | 107°31.2'W | 55°25.9'N | 102°57.2'W | 0.909 | 22° | 221° | 804 km | 08m14.3s |
| 21:18 | 57°38.3'N | 096°20.0'W | 52°00.2'N | 107°03.4'W | 54°34.7'N | 102°33.1'W | 0.909 | 22° | 222° | 810 km | 08m15.2s |
| 21:20 | 56°43.8'N | 096°03.3'W | 51°13.5'N | 106°35.6'W | 53°44.9'N | 102°08.3'W | 0.909 | 22° | 223° | 817 km | 08m16.0s |
| 21:22 | 55°51.3'N | 095°44.4'W | 50°28.0'N | 106°07.5'W | 52°56.5'N | 101°42.9'W | 0.909 | 22° | 224° | 825 km | 08m16.6s |
| 21:24 | 55°00.4'N | 095°23.4'W | 49°43.4'N | 105°39.3'W | 52°09.3'N | 101°16.6'W | 0.909 | 23° | 226° | 834 km | 08m17.2s |
| 21:26 | 54°11.2'N | 095°00.5'W | 48°59.7'N | 105°10.8'W | 51°23.4'N | 100°49.7'W | 0.909 | 23° | 227° | 843 km | 08m17.5s |
| 21:28 | 53°23.5'N | 094°35.7'W | 48°17.0'N | 104°41.9'W | 50°38.5'N | 100°21.9'W | 0.909 | 23° | 228° | 853 km | 08m17.8s |
| 21:30 | 52°37.2'N | 094°09.1'W | 47°35.1'N | 104°12.7'W | 49°54.8'N | 099°53.2'W | 0.909 | 23° | 229° | 863 km | 08m17.9s |
| 21:32 | 51°52.1'N | 093°40.5'W | 46°54.0'N | 103°42.9'W | 49°12.0'N | 099°23.7'W | 0.909 | 23° | 230° | 873 km | 08m17.9s |
| 21:34 | 51°08.4'N | 093°10.1'W | 46°13.7'N | 103°12.6'W | 48°30.2'N | 098°53.1'W | 0.909 | 23° | 231° | 884 km | 08m17.7s |
| 21:36 | 50°25.8'N | 092°37.5'W | 45°34.1'N | 102°41.7'W | 47°49.3'N | 098°21.4'W | 0.909 | 23° | 232° | 896 km | 08m17.5s |
| 21:38 | 49°44.4'N | 092°02.8'W | 44°55.3'N | 102°10.1'W | 47°09.3'N | 097°48.6'W | 0.909 | 22° | 234° | 908 km | 08m17.1s |
| 21:40 | 49°04.0'N | 091°25.8'W | 44°17.1'N | 101°37.6'W | 46°30.1'N | 097°14.5'W | 0.909 | 22° | 235° | 920 km | 08m16.5s |
| 21:42 | 48°24.8'N | 090°46.3'W | 43°39.6'N | 101°04.2'W | 45°51.8'N | 096°38.9'W | 0.909 | 22° | 236° | 932 km | 08m15.8s |
| 21:44 | 47°46.6'N | 090°03.9'W | 43°02.7'N | 100°29.8'W | 45°14.2'N | 096°01.8'W | 0.909 | 22° | 237° | 944 km | 08m15.0s |
| 21:46 | 47°09.4'N | 089°18.4'W | 42°26.5'N | 099°54.3'W | 44°37.4'N | 095°23.0'W | 0.909 | 21° | 238° | 956 km | 08m14.0s |
| 21:48 | 46°33.3'N | 088°29.2'W | 41°50.9'N | 099°17.6'W | 44°01.5'N | 094°42.2'W | 0.909 | 21° | 240° | 967 km | 08m12.8s |
| 21:50 | 45°58.4'N | 087°35.9'W | 41°15.9'N | 098°39.4'W | 43°26.2'N | 093°59.3'W | 0.909 | 20° | 241° | 978 km | 08m11.5s |
| 21:52 | 45°24.5'N | 086°37.7'W | 40°41.5'N | 097°59.7'W | 42°51.8'N | 093°13.9'W | 0.908 | 20° | 242° | 988 km | 08m10.1s |
| 21:54 | 44°51.9'N | 085°33.6'W | 40°07.8'N | 097°18.2'W | 42°18.1'N | 092°25.8'W | 0.908 | 19° | 243° | 998 km | 08m08.4s |
| 21:56 | 44°20.5'N | 084°22.0'W | 39°34.6'N | 096°34.7'W | 41°45.3'N | 091°34.4'W | 0.908 | 19° | 244° | 1005 km | 08m06.5s |
| 21:58 | 43°50.8'N | 083°00.9'W | 39°02.0'N | 095°49.0'W | 41°13.3'N | 090°39.3'W | 0.908 | 18° | 246° | 1012 km | 08m04.5s |
| 22:00 | 43°22.9'N | 081°26.7'W | 38°30.1'N | 095°00.8'W | 40°42.1'N | 089°39.8'W | 0.908 | 17° | 247° | 1016 km | 08m02.1s |
| 22:02 | 42°57.5'N | 079°32.8'W | 37°58.8'N | 094°09.6'W | 40°11.9'N | 088°35.0'W | 0.908 | 16° | 248° | 1018 km | 07m59.5s |
| 22:04 | 42°36.2'N | 077°04.6'W | 37°28.2'N | 093°15.1'W | 39°42.8'N | 087°23.7'W | 0.907 | 15° | 250° | 1018 km | 07m56.7s |
| 22:06 | 42°24.8'N | 073°04.8'W | 36°58.3'N | 092°16.6'W | 39°14.8'N | 086°04.1'W | 0.907 | 14° | 251° | 1014 km | 07m53.4s |
| 22:08 | - | - | 36°29.2'N | 091°13.4'W | 38°48.3'N | 084°33.5'W | 0.907 | 13° | 252° | 1007 km | 07m49.7s |
| 22:10 | - | - | 36°00.9'N | 090°04.4'W | 38°23.7'N | 082°47.4'W | 0.906 | 11° | 254° | 997 km | 07m45.3s |
| 22:12 | - | - | 35°33.5'N | 088°48.4'W | 38°01.8'N | 080°36.9'W | 0.906 | 9° | 256° | 981 km | 07m40.1s |
| 22:14 | - | - | 35°07.3'N | 087°23.3'W | 37°44.8'N | 077°39.1'W | 0.905 | 6° | 258° | 959 km | 07m33.2s |
| Limits | 42°41.0'N | 068°19.8'W | 33°57.6'N | 071°10.2'W | 37°55.4'N | 069°52.7'W | 0.904 | 0° | - | 910 km | 07m16.9s |
ΔT = 39803.9 seconds
| Greatest Eclipse and Greatest Duration | ||||||||
| Event | Time TD |
Time UT1 |
Latitude | Longitude | Sun Altitude |
Sun Azimuth |
Path Width | Central Duration |
| Greatest Eclipse | 08:32:47.6 | 21:29:23.7 | 50°07.9'N | 093°39.8'E | 22.8° | 228.6° | 859.6 km | 08m17.88s |
| Greatest Duration | 08:34:13.1 | 21:30:49.2 | 49°37.1'N | 099°41.2'W | 22.8° | 229.4° | 867.1 km | 08m17.91s |
Links for the Annular Solar Eclipse of -1718 Oct 21
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 -1718 Oct 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 39803.9 seconds for this eclipse. The uncertainty in ΔT is 2629.7 seconds corresponding to a standard error in longitude of the eclipse path of ± 10.99°.
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.