Solar eclipse of July 31, 1981
A total solar eclipse occurred at the Moon’s ascending node of the orbit on Friday, July 31, 1981. 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. The continental path of totality fell entirely within the Soviet Union, belonging to Georgia, Kazakhstan and Russia today. The southern part of Mount Elbrus, the highest mountain in Europe, also lies in the path of totality. Occurring only 3.8 days after perigee, the Moon's apparent diameter was larger. With a path width of 107.8 km, this total solar eclipse had an average path.
It was the 20th eclipse of the 145th Saros cycle, which began with a partial eclipse on January 4, 1639 and will conclude with a partial eclipse on April 17, 3009.
The moon's apparent diameter was 7 arcseconds larger than the February 4, 1981 annular solar eclipse.Related eclipses
Saros 145
Tritos series
Metonic series
