Path of the Annular Solar Eclipse of -1256 Jan 21

Fred Espenak

Introduction

The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of -1256 Jan 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 -1256 Jan 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
Limits59°28.5'S123°29.3'W63°43.0'S138°58.1'W61°33.4'S130°11.2'W 0.925 - 924 km 04m24.0s
11:4069°41.4'S108°45.1'W - - 64°03.1'S126°28.4'W 0.925 139° 911 km 04m26.6s
11:4271°17.0'S106°44.1'W - - 67°33.7'S122°03.6'W 0.926 135° 883 km 04m30.3s
11:4472°44.2'S104°54.1'W - - 69°49.5'S119°38.8'W 0.927 132° 861 km 04m32.6s
11:4674°05.4'S103°10.6'W - - 71°41.1'S117°54.2'W 0.928 11° 130° 843 km 04m34.4s
11:4875°22.0'S101°30.6'W67°27.9'S134°30.1'W73°19.4'S116°32.7'W 0.928 13° 128° 826 km 04m35.8s
11:5076°34.9'S099°51.6'W70°23.8'S132°09.6'W74°49.0'S115°27.5'W 0.928 14° 126° 812 km 04m37.1s
11:5277°44.9'S098°11.4'W72°29.3'S131°09.3'W76°12.4'S114°35.2'W 0.929 15° 124° 799 km 04m38.3s
11:5478°52.3'S096°27.7'W74°14.3'S130°49.2'W77°31.2'S113°54.5'W 0.929 16° 123° 787 km 04m39.3s
11:5679°57.5'S094°37.5'W75°47.1'S131°00.0'W78°46.2'S113°25.0'W 0.929 17° 122° 777 km 04m40.1s
11:5881°00.9'S092°37.3'W77°11.5'S131°39.9'W79°58.3'S113°07.5'W 0.929 17° 121° 768 km 04m40.9s
12:0082°02.5'S090°22.1'W78°29.3'S132°50.7'W81°07.8'S113°03.6'W 0.929 18° 120° 760 km 04m41.6s
12:0283°02.5'S087°44.7'W79°41.6'S134°36.9'W82°15.3'S113°17.0'W 0.929 19° 119° 753 km 04m42.3s
12:0484°00.8'S084°34.8'W80°48.8'S137°06.1'W83°20.8'S113°53.6'W 0.930 19° 119° 746 km 04m42.8s
12:0684°57.3'S080°31.5'W81°51.0'S140°29.1'W84°24.7'S115°04.3'W 0.930 20° 119° 741 km 04m43.3s
12:0885°51.7'S075°02.7'W82°47.7'S145°00.9'W85°26.8'S117°09.6'W 0.930 20° 120° 736 km 04m43.7s
12:1086°42.7'S067°04.9'W83°37.9'S151°00.2'W86°26.9'S120°52.3'W 0.930 20° 123° 732 km 04m44.1s
12:1287°27.9'S054°33.3'W84°19.9'S158°46.6'W87°23.9'S127°54.2'W 0.930 21° 129° 729 km 04m44.3s
12:1488°01.5'S034°01.2'W84°51.4'S168°31.2'W88°14.5'S142°52.9'W 0.930 21° 144° 727 km 04m44.6s
12:1688°12.7'S004°45.2'W85°09.8'S180°00.0'W88°45.7'S176°32.9'W 0.930 21° 176° 725 km 04m44.7s
12:1887°55.8'S022°55.0'E85°13.2'S167°40.6'E88°34.6'S140°16.4'E 0.930 21° 219° 724 km 04m44.8s
12:2087°19.6'S041°10.2'E85°01.4'S155°48.8'E87°52.1'S117°23.2'E 0.930 21° 241° 723 km 04m44.9s
12:2286°34.3'S052°17.7'E84°36.3'S145°28.7'E86°59.3'S107°13.8'E 0.930 21° 250° 723 km 04m44.8s
12:2485°44.6'S059°28.4'E84°00.7'S137°04.9'E86°03.1'S102°06.9'E 0.930 21° 254° 724 km 04m44.8s
12:2684°52.7'S064°28.4'E83°17.4'S130°31.7'E85°05.4'S099°16.1'E 0.930 21° 256° 726 km 04m44.6s
12:2883°59.4'S068°11.7'E82°28.4'S125°30.4'E84°06.8'S097°36.2'E 0.930 21° 257° 728 km 04m44.5s
12:3083°05.1'S071°07.4'E81°35.1'S121°41.2'E83°07.5'S096°37.8'E 0.930 21° 257° 731 km 04m44.2s
12:3282°10.1'S073°31.6'E80°38.4'S118°47.6'E82°07.5'S096°05.7'E 0.930 21° 257° 734 km 04m43.9s
12:3481°14.4'S075°34.4'E79°39.0'S116°37.2'E81°06.9'S095°51.9'E 0.930 20° 256° 738 km 04m43.5s
12:3680°18.0'S077°22.2'E78°36.9'S115°00.6'E80°05.6'S095°51.1'E 0.930 20° 255° 743 km 04m43.1s
12:3879°20.9'S078°59.1'E77°32.5'S113°51.3'E79°03.4'S096°00.6'E 0.930 20° 254° 749 km 04m42.6s
12:4078°23.1'S080°28.4'E76°25.4'S113°04.6'E78°00.3'S096°18.3'E 0.930 19° 253° 755 km 04m42.1s
12:4277°24.4'S081°52.0'E75°15.5'S112°37.3'E76°55.9'S096°43.1'E 0.930 19° 252° 762 km 04m41.4s
12:4476°24.8'S083°11.3'E74°02.4'S112°27.3'E75°50.2'S097°14.4'E 0.930 18° 251° 770 km 04m40.7s
12:4675°24.0'S084°28.7'E72°45.4'S112°33.8'E74°42.7'S097°51.8'E 0.929 17° 249° 779 km 04m40.0s
12:4874°21.9'S085°44.5'E71°23.3'S112°56.9'E73°33.3'S098°35.4'E 0.929 17° 248° 789 km 04m39.1s
12:5073°18.4'S086°59.9'E69°54.5'S113°38.5'E72°21.3'S099°25.7'E 0.929 16° 246° 800 km 04m38.2s
12:5272°13.1'S088°16.0'E68°15.8'S114°42.9'E71°06.2'S100°23.3'E 0.929 15° 244° 812 km 04m37.1s
12:5471°05.6'S089°33.8'E66°20.5'S116°21.3'E69°47.2'S101°29.7'E 0.929 14° 243° 825 km 04m35.9s
12:5669°55.7'S090°54.3'E63°46.3'S119°11.7'E68°22.8'S102°46.9'E 0.928 13° 241° 839 km 04m34.6s
12:5868°42.6'S092°19.1'E - - 66°51.1'S104°18.7'E 0.928 11° 239° 854 km 04m33.1s
13:0067°25.5'S093°49.9'E - - 65°08.1'S106°12.0'E 0.927 236° 871 km 04m31.3s
13:0266°03.2'S095°29.1'E - - 63°04.9'S108°43.4'E 0.927 234° 889 km 04m29.1s
13:0464°33.8'S097°20.6'E - - 60°05.1'S113°00.6'E 0.926 229° 909 km 04m25.7s
Limits55°04.7'S111°57.1'E60°03.3'S124°46.9'E57°27.1'S117°31.3'E 0.925 - 917 km 04m22.6s

ΔT = 30093.2 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse20:43:36.312:22:03.286°57.9'S018°40.9'W 21.3° 250.1° 723.4 km04m44.84s
Greatest Duration20:42:02.312:20:29.187°39.8'S114°10.4'E 21.2° 243.7° 723.1 km04m44.86s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Annular Solar Eclipse of -1256 Jan 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 -1256 Jan 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 30093.2 seconds for this eclipse. The uncertainty in ΔT is 1204.5 seconds corresponding to a standard error in longitude of the eclipse path of ± 5.03°.

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.