Solar eclipse of December 4, 1983

Solar eclipse of December 4, 1983
Map
Type of eclipse
Nature Annular
Gamma 0.4015
Magnitude 0.9666
Maximum eclipse
Duration 241 sec (4 m 1 s)
Coordinates 0°54′N 4°42′W / 0.9°N 4.7°W / 0.9; -4.7
Max. width of band 131 km (81 mi)
Times (UTC)
Greatest eclipse 12:31:15
References
Saros 132 (44 of 71)
Catalog # (SE5000) 9473

An annular solar eclipse occurred on December 4, 1983. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.

Solar eclipses of 1982-1985

Each member 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.

Note: Partial solar eclipses on January 25, 1982 and July 20, 1982 occur in the previous lunar year eclipse set.

Solar eclipse series sets from 1982-1985
Ascending node   Descending node
SarosMap SarosMap
117
June 21, 1982
Partial		 122
December 15, 1982
Partial
127
June 11, 1983
Total		 132
December 4, 1983
Annular
137
May 30, 1984
Annular		 142

Partial from Gisborne, NZ
November 22, 1984
Total
147
May 19, 1985
Partial		 152
November 12, 1985
Total

Saros 132

It is a part of Saros cycle 132, repeating every 18 years, 11 days, containing 71 events. The series started with partial solar eclipse on August 13, 1208. It contains annular eclipses from March 17, 1569 through March 12, 2146, hybrid on March 23, 2164 and April 3, 2183 and total eclipses from April 14, 2200 through June 19, 2308. The series ends at member 71 as a partial eclipse on September 25, 2470. The longest duration of annular was 6 minutes, 56 seconds on May 9, 1641, and totality will be 2 minutes, 14 seconds on June 8, 2290.[1]

Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.

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).

Notes

  1. ↑ http://eclipse.gsfc.nasa.gov/SEsaros/SEsaros132.html

References

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