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A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's and the apparent path of the Sun and Moon intersect, blocking all direct sunlight and turning daylight into darkness; the Sun appears to be black with a halo around it.
Dec 4, 2021 · Predictions for the Total Solar Eclipse of 2021 Dec 04 were generated using the VSOP87/ELP2000-85 solar and lunar ephemerides and a value of ΔT = 69.8 seconds. The eclipse predictions presented here DO NOT include the effects of mountains and valleys along the edge of the Moon.
Dec 4, 2021 · Predictions for the Total Solar Eclipse of 2021 Dec 04 were generated using the JPL DE430 solar and lunar ephemerides. The lunar coordinates were calculated with respect to the Moon's Center of Mass.
Dec 4, 2021 · Interactive map showing where the total solar eclipse of Dec 4, 2021 is visible—with local times and average cloud cover for any location.
The table below is a concise summary of all total, annular and hybrid solar eclipses from 2021 through 2040 (excluding partial eclipses). The links in the table provide additional information and graphics for each eclipse.
Dec 4, 2021 · The following table delineates the path of the Moon's umbral shadow during the Total Solar Eclipse of 2021 Dec 04. The geographic coordinates (WGS 84) of the northern and southern limits and the central line are listed at 120-second intervals.
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Dec 4, 2021 · The Total Solar Eclipse of 2021 Dec 04 is visible from the following geographic regions: Partial Eclipse: Antarctica, South Africa, south Atlantic. Total Eclipse: Antarctca. The map to the right depicts the geographic regions of eclipse visibility. Click on the map to enlarge it.
