Nature Annular Magnitude 0.9394 Max. width of band 230 km (140 mi) Start date April 7, 1940 | Gamma 0.219 Duration 450 sec (7 m 30 s) Greatest eclipse 20:21:21 | |
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An annular solar eclipse occurred on April 7, 1940. 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 1939-1942
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.
References
Solar eclipse of April 7, 1940 Wikipedia(Text) CC BY-SA