Path of the Annular Solar Eclipse of 1621 May 21

Fred Espenak

Introduction

The following table delineates the path of the Moon's antumbral shadow during the Annular Solar Eclipse of 1621 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 1621 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
Limits34°29.5'N038°34.5'W33°50.7'N037°57.2'W34°10.1'N038°15.7'W 0.984 - 89 km 00m53.9s
07:3236°29.9'N033°28.7'W37°21.9'N029°33.8'W37°01.8'N031°14.3'W 0.986 70° 79 km 00m49.9s
07:3439°06.6'N027°25.7'W39°21.0'N025°16.7'W39°14.7'N026°18.0'W 0.987 11° 73° 72 km 00m46.8s
07:3640°47.1'N023°48.1'W40°51.6'N022°10.1'W40°49.7'N022°57.5'W 0.988 15° 76° 67 km 00m44.6s
07:3842°08.9'N020°57.5'W42°08.5'N019°36.2'W42°08.9'N020°15.8'W 0.989 17° 78° 63 km 00m42.7s
07:4043°20.2'N018°32.2'W43°16.9'N017°21.9'W43°18.6'N017°56.3'W 0.989 19° 80° 59 km 00m41.0s
07:4244°24.4'N016°23.2'W44°19.2'N015°20.8'W44°21.9'N015°51.5'W 0.990 21° 82° 56 km 00m39.5s
07:4445°23.5'N014°25.6'W45°17.1'N013°29.3'W45°20.3'N013°57.0'W 0.990 23° 84° 53 km 00m38.1s
07:4646°18.7'N012°36.4'W46°11.3'N011°45.0'W46°15.0'N012°10.3'W 0.991 25° 86° 50 km 00m36.8s
07:4847°10.6'N010°53.5'W47°02.6'N010°06.2'W47°06.6'N010°29.6'W 0.991 26° 88° 48 km 00m35.6s
07:5047°59.9'N009°15.7'W47°51.3'N008°31.9'W47°55.6'N008°53.5'W 0.991 28° 90° 45 km 00m34.5s
07:5248°46.8'N007°41.8'W48°37.9'N007°01.1'W48°42.4'N007°21.2'W 0.992 29° 92° 43 km 00m33.4s
07:5449°31.8'N006°11.2'W49°22.6'N005°33.1'W49°27.2'N005°51.9'W 0.992 31° 94° 41 km 00m32.4s
07:5650°14.9'N004°43.1'W50°05.5'N004°07.3'W50°10.2'N004°25.0'W 0.992 32° 96° 40 km 00m31.4s
07:5850°56.5'N003°17.0'W50°47.0'N002°43.4'W50°51.7'N003°00.1'W 0.993 33° 98° 38 km 00m30.4s
08:0051°36.6'N001°52.6'W51°27.0'N001°20.9'W51°31.8'N001°36.6'W 0.993 34° 100° 36 km 00m29.5s
08:0252°15.4'N000°29.4'W52°05.7'N000°00.4'E52°10.5'N000°14.4'W 0.993 35° 102° 35 km 00m28.7s
08:0452°52.9'N000°52.7'E52°43.2'N001°21.0'E52°48.0'N001°07.0'E 0.994 36° 104° 33 km 00m27.9s
08:0653°29.3'N002°14.2'E53°19.5'N002°40.9'E53°24.4'N002°27.7'E 0.994 37° 106° 32 km 00m27.1s
08:0854°04.5'N003°35.2'E53°54.8'N004°00.5'E53°59.6'N003°47.9'E 0.994 38° 109° 31 km 00m26.3s
08:1054°38.7'N004°55.9'E54°29.0'N005°19.9'E54°33.8'N005°08.0'E 0.994 38° 111° 30 km 00m25.6s
08:1255°12.0'N006°16.5'E55°02.2'N006°39.2'E55°07.1'N006°27.9'E 0.994 39° 113° 29 km 00m25.0s
08:1455°44.2'N007°37.2'E55°34.5'N007°58.8'E55°39.3'N007°48.0'E 0.995 40° 115° 28 km 00m24.3s
08:1656°15.5'N008°58.1'E56°05.9'N009°18.6'E56°10.7'N009°08.4'E 0.995 41° 118° 27 km 00m23.7s
08:1856°46.0'N010°19.4'E56°36.3'N010°38.8'E56°41.1'N010°29.2'E 0.995 41° 120° 26 km 00m23.1s
08:2057°15.5'N011°41.2'E57°05.9'N011°59.6'E57°10.7'N011°50.5'E 0.995 42° 122° 25 km 00m22.6s
08:2257°44.1'N013°03.6'E57°34.6'N013°21.1'E57°39.3'N013°12.4'E 0.995 42° 125° 24 km 00m22.0s
08:2458°11.9'N014°26.7'E58°02.4'N014°43.3'E58°07.1'N014°35.1'E 0.995 43° 127° 24 km 00m21.5s
08:2658°38.8'N015°50.7'E58°29.4'N016°06.5'E58°34.1'N015°58.7'E 0.995 44° 130° 23 km 00m21.1s
08:2859°04.9'N017°15.7'E58°55.5'N017°30.6'E59°00.1'N017°23.2'E 0.995 44° 132° 22 km 00m20.7s
08:3059°30.1'N018°41.7'E59°20.7'N018°55.7'E59°25.4'N018°48.7'E 0.996 44° 135° 22 km 00m20.3s
08:3259°54.4'N020°08.8'E59°45.1'N020°22.0'E59°49.7'N020°15.4'E 0.996 45° 138° 21 km 00m19.9s
08:3460°17.9'N021°37.1'E60°08.6'N021°49.6'E60°13.2'N021°43.3'E 0.996 45° 140° 21 km 00m19.5s
08:3660°40.5'N023°06.6'E60°31.2'N023°18.4'E60°35.8'N023°12.5'E 0.996 45° 143° 20 km 00m19.2s
08:3861°02.2'N024°37.6'E60°52.9'N024°48.5'E60°57.5'N024°43.1'E 0.996 46° 146° 20 km 00m18.9s
08:4061°23.1'N026°09.9'E61°13.7'N026°20.1'E61°18.4'N026°15.0'E 0.996 46° 149° 20 km 00m18.7s
08:4261°43.0'N027°43.7'E61°33.6'N027°53.2'E61°38.3'N027°48.5'E 0.996 46° 151° 19 km 00m18.5s
08:4462°02.0'N029°19.0'E61°52.6'N029°27.8'E61°57.3'N029°23.4'E 0.996 46° 154° 19 km 00m18.3s
08:4662°20.0'N030°55.8'E62°10.6'N031°03.9'E62°15.3'N030°59.9'E 0.996 46° 157° 19 km 00m18.1s
08:4862°37.1'N032°34.3'E62°27.6'N032°41.7'E62°32.3'N032°38.0'E 0.996 47° 160° 19 km 00m17.9s
08:5062°53.1'N034°14.4'E62°43.7'N034°21.0'E62°48.4'N034°17.7'E 0.996 47° 163° 18 km 00m17.8s
08:5263°08.2'N035°56.1'E62°58.7'N036°02.0'E63°03.4'N035°59.0'E 0.996 47° 166° 18 km 00m17.8s
08:5463°22.2'N037°39.5'E63°12.7'N037°44.6'E63°17.4'N037°42.0'E 0.996 47° 169° 18 km 00m17.7s
08:5663°35.2'N039°24.5'E63°25.5'N039°28.8'E63°30.3'N039°26.7'E 0.996 47° 172° 18 km 00m17.7s
08:5863°47.0'N041°11.2'E63°37.3'N041°14.7'E63°42.2'N041°13.0'E 0.996 46° 176° 18 km 00m17.7s
09:0063°57.8'N042°59.5'E63°48.0'N043°02.2'E63°52.9'N043°00.9'E 0.996 46° 179° 18 km 00m17.7s
09:0264°07.4'N044°49.5'E63°57.5'N044°51.3'E64°02.4'N044°50.4'E 0.996 46° 182° 18 km 00m17.8s
09:0464°15.8'N046°41.1'E64°05.8'N046°42.0'E64°10.8'N046°41.5'E 0.996 46° 185° 18 km 00m17.9s
09:0664°23.0'N048°34.2'E64°12.9'N048°34.2'E64°17.9'N048°34.2'E 0.996 46° 188° 19 km 00m18.0s
09:0864°29.0'N050°28.8'E64°18.7'N050°27.9'E64°23.8'N050°28.3'E 0.996 45° 191° 19 km 00m18.2s
09:1064°33.7'N052°24.9'E64°23.3'N052°22.9'E64°28.5'N052°23.9'E 0.996 45° 195° 19 km 00m18.4s
09:1264°37.1'N054°22.4'E64°26.6'N054°19.4'E64°31.8'N054°20.9'E 0.996 45° 198° 19 km 00m18.6s
09:1464°39.1'N056°21.3'E64°28.5'N056°17.1'E64°33.8'N056°19.2'E 0.996 44° 201° 20 km 00m18.8s
09:1664°39.8'N058°21.4'E64°29.0'N058°16.1'E64°34.4'N058°18.7'E 0.996 44° 204° 20 km 00m19.1s
09:1864°39.1'N060°22.8'E64°28.1'N060°16.2'E64°33.6'N060°19.5'E 0.996 44° 207° 20 km 00m19.4s
09:2064°36.9'N062°25.3'E64°25.8'N062°17.4'E64°31.3'N062°21.3'E 0.996 43° 211° 21 km 00m19.7s
09:2264°33.3'N064°28.8'E64°22.0'N064°19.6'E64°27.6'N064°24.2'E 0.996 43° 214° 21 km 00m20.1s
09:2464°28.2'N066°33.4'E64°16.7'N066°22.7'E64°22.4'N066°28.0'E 0.995 42° 217° 22 km 00m20.5s
09:2664°21.5'N068°38.9'E64°09.9'N068°26.6'E64°15.7'N068°32.7'E 0.995 41° 220° 23 km 00m20.9s
09:2864°13.2'N070°45.3'E64°01.5'N070°31.4'E64°07.3'N070°38.3'E 0.995 41° 223° 23 km 00m21.4s
09:3064°03.3'N072°52.5'E63°51.4'N072°36.9'E63°57.3'N072°44.7'E 0.995 40° 226° 24 km 00m21.9s
09:3263°51.7'N075°00.5'E63°39.7'N074°43.2'E63°45.7'N074°51.8'E 0.995 39° 230° 25 km 00m22.4s
09:3463°38.4'N077°09.4'E63°26.3'N076°50.1'E63°32.4'N076°59.7'E 0.995 39° 233° 26 km 00m23.0s
09:3663°23.4'N079°19.0'E63°11.2'N078°57.8'E63°17.2'N079°08.3'E 0.995 38° 236° 27 km 00m23.6s
09:3863°06.5'N081°29.5'E62°54.2'N081°06.1'E63°00.3'N081°17.7'E 0.994 37° 239° 28 km 00m24.3s
09:4062°47.7'N083°40.8'E62°35.3'N083°15.2'E62°41.5'N083°27.9'E 0.994 36° 242° 29 km 00m24.9s
09:4262°26.9'N085°53.2'E62°14.5'N085°25.1'E62°20.7'N085°39.0'E 0.994 35° 245° 30 km 00m25.6s
09:4462°04.1'N088°06.6'E61°51.7'N087°36.0'E61°57.9'N087°51.1'E 0.994 34° 248° 31 km 00m26.4s
09:4661°39.1'N090°21.4'E61°26.7'N089°48.0'E61°32.9'N090°04.5'E 0.994 33° 251° 32 km 00m27.2s
09:4861°11.7'N092°37.7'E60°59.5'N092°01.4'E61°05.6'N092°19.3'E 0.993 32° 254° 34 km 00m28.0s
09:5060°41.9'N094°55.9'E60°29.9'N094°16.4'E60°35.9'N094°35.9'E 0.993 31° 257° 35 km 00m28.9s
09:5260°09.4'N097°16.4'E59°57.7'N096°33.4'E60°03.5'N096°54.6'E 0.993 29° 260° 37 km 00m29.9s
09:5459°34.1'N099°39.8'E59°22.7'N098°52.9'E59°28.3'N099°16.1'E 0.992 28° 262° 39 km 00m30.9s
09:5658°55.4'N102°06.9'E58°44.5'N101°15.6'E58°50.0'N101°40.9'E 0.992 27° 265° 41 km 00m31.9s
09:5858°13.1'N104°38.7'E58°02.9'N103°42.4'E58°08.0'N104°10.1'E 0.992 25° 268° 43 km 00m33.1s
10:0057°26.5'N107°16.5'E57°17.3'N106°14.4'E57°21.9'N106°45.0'E 0.991 23° 271° 45 km 00m34.3s
10:0256°34.7'N110°02.5'E56°27.0'N108°53.3'E56°30.9'N109°27.3'E 0.991 22° 274° 48 km 00m35.6s
10:0455°36.6'N112°59.6'E55°30.9'N111°41.6'E55°33.9'N112°19.9'E 0.990 20° 277° 51 km 00m37.0s
10:0654°30.1'N116°13.0'E54°27.5'N114°43.1'E54°28.9'N115°27.0'E 0.990 18° 281° 55 km 00m38.6s
10:0853°11.4'N119°51.6'E53°13.8'N118°04.5'E53°12.9'N118°56.5'E 0.989 15° 284° 59 km 00m40.4s
10:1051°32.0'N124°16.5'E51°44.5'N121°58.9'E51°39.1'N123°04.7'E 0.988 12° 288° 64 km 00m42.5s
10:1249°00.2'N130°47.0'E49°44.4'N127°02.9'E49°26.3'N128°43.4'E 0.987 293° 71 km 00m45.5s
Limits46°02.5'N138°16.8'E45°28.2'N137°34.0'E45°45.3'N137°55.3'E 0.985 - 83 km 00m50.1s

ΔT = 91.6 seconds

Greatest Eclipse and Greatest Duration
Event Time
TD
Time
UT1
Latitude Longitude Sun
Altitude
Sun
Azimuth
Path Width Central
Duration
Greatest Eclipse08:53:42.908:52:11.363°04.8'N035°45.7'E 46.6° 166.6° 18.3 km00m17.75s
Greatest Duration07:32:31.407:30:59.734°10.1'N038°15.7'W 0.0° 65.3° 88.9 km00m53.93s

Explanation of Greatest Eclipse and Greatest Duration

Links for the Annular Solar Eclipse of 1621 May 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 1621 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 91.6 seconds for this eclipse. The uncertainty in ΔT is 16.8 seconds corresponding to a standard error in longitude of the eclipse path of ± 0.07°.

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.