Solar eclipse of April 8, 1921

An annular solar eclipse occurred on April 8, 1921. 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. Annularity was visible from northern Scotland, northwestern tip of Norway, and islands in the Arctic Ocean in Russian SFSR.

Solar eclipse of April 8, 1921
Map
Type of eclipse
NatureAnnular
Gamma0.8869
Magnitude0.9753
Maximum eclipse
Duration110 s (1 min 50 s)
Coordinates64°30′N 5°36′E / 64.5°N 5.6°E / 64.5; 5.6
Max. width of band192 km (119 mi)
Times (UTC)
Greatest eclipse9:15:01
References
Saros118 (63 of 72)
Catalog # (SE5000)9330

Related eclipses edit

Solar eclipses 1921–1924 edit

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]

Solar eclipse series sets from 1921 to 1924
Descending node   Ascending node
118 April 8, 1921
 
Annular
123 October 1, 1921
 
Total
128 March 28, 1922
 
Annular
133 September 21, 1922
 
Total
138 March 17, 1923
 
Annular
143 September 10, 1923
 
Total
148 March 5, 1924
 
Partial
153 August 30, 1924
 
Partial

Saros 118 edit

This eclipse is a part of Saros cycle 118, repeating every 18 years, 11 days, containing 72 events. The series started with partial solar eclipse on May 24, 803 AD. It contains total eclipses from August 19, 947 AD through October 25, 1650, hybrid eclipses on November 4, 1668, and November 15, 1686, and annular eclipses from November 27, 1704, through April 30, 1957. The series ends at member 72 as a partial eclipse on July 15, 2083. The longest duration of total was 6 minutes, 59 seconds on May 16, 1398.

Metonic series edit

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 edit

  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.

References edit