Solar eclipse of December 4, 2021

A total solar eclipse will occur on December 4, 2021. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. This eclipse will be unusual as the path of the total eclipse will move from east to west across West Antarctica, while most eclipse paths move from west to east. This reversal is only possible in polar regions.

Solar eclipse of December 4, 2021
Map
Type of eclipse
NatureTotal
Gamma-0.9526
Magnitude1.0367
Maximum eclipse
Duration114 sec (1 m 54 s)
Coordinates76.8°S 46.2°W / -76.8; -46.2
Max. width of band419 km (260 mi)
Times (UTC)
Greatest eclipse7:34:38
References
Saros152 (13 of 70)
Catalog # (SE5000)9556

Images


Animated path

Eclipses of 2021

Tzolkinex

Half-Saros cycle

Tritos

Solar Saros 152

Inex

Triad

  • Followed: Solar eclipse of October 5, 2108

Solar eclipses of 2018–2021

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[1]

Note: Partial solar eclipses on February 15, 2018, and August 11, 2018, occurred during the previous semester series.

Saros 152

Solar saros 152, repeating every about 18 years and 11 days, contains 70 events. The series started with a partial solar eclipse on July 26, 1805. It has total eclipses from November 2, 1967, to September 14, 2490; hybrid eclipses from September 26, 2508, to October 17, 2544; and annular eclipses from October 29, 2562, to June 16, 2941. The series ends at member 70 as a partial eclipse on August 20, 3049. The longest total eclipse will occur on June 9, 2328, at 5 minutes and 15 seconds; the longest annular eclipse will occur on February 16, 2743, at 5 minutes and 20 seconds.[2]

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's descending node.

Notes

  1. van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  2. Saros Series Catalog of Solar Eclipses NASA Eclipse Web Site.

References

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