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Solar eclipse of April 18, 1977


Solar eclipse of April 18, 1977

Solar eclipse of April 18, 1977
Type of eclipse
Nature Annular
Gamma -0.399
Magnitude 0.9449
Maximum eclipse
Duration 7m 4s
Coordinates 11.9S 28.3E
Max. width of band 220 km
Times (UTC)
Greatest eclipse 10:31:30
Saros 138 (29 of 70)
Catalog # (SE5000) 9458

An annular solar eclipse occurred on April 18, 1977. 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.


  • Related eclipses 1
    • Solar eclipses of 1975-1978 1.1
  • Notes 2
  • References 3

Related eclipses

Solar eclipses of 1975-1978

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.
Solar eclipse series sets from 1975-1978
Ascending node   Descending node
Saros Map Saros Map
May 11, 1975
November 3, 1975
April 29, 1976
October 23, 1976
April 18, 1977
October 12, 1977
April 7, 1978
October 2, 1978



  • Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
    • Google interactive map
    • Besselian elements

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