Solar eclipse of July 20, 1963

Solar eclipse of July 20, 1963
Map
Type of eclipse
Nature Total
Gamma 0.6571
Magnitude 1.0224
Maximum eclipse
Duration 100 sec (1 m 40 s)
Coordinates 61°42′N 119°36′W / 61.7°N 119.6°W / 61.7; -119.6
Max. width of band 101 km (63 mi)
Times (UTC)
Greatest eclipse 20:36:13
References
Saros 145 (19 of 77)
Catalog # (SE5000) 9427

A total solar eclipse occurred on Saturday, July 20, 1963. 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 the same size as 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. Totality was visible from Hokkaido in Japan and Kuril Islands in Soviet Union (now belonging to Russia) on July 21, and Alaska, and Maine in the United States and also Canada on July 20. Astronomer Charles H. Smiley observed the eclipse from a U.S. Air Force F-104D Starfighter supersonic aircraft that was "racing the moon's shadow" at 1,300 mph (2,100 km/h) extending the duration of totality to 4 minutes 3 seconds.[1]

The eclipse was featured in the comic strip Peanuts (July 15–20, 1963), with Linus demonstrating a safe way of observing the eclipse as opposed to looking directly at the eclipse. On the day the eclipse passed over his area, Linus was left helplessly standing in the rain with cloud cover entirely too thick to witness the eclipse.

It also served an important function in the plots of two Stephen King novels, Gerald's Game (1992) and Dolores Claiborne (1992) and was featured in a season 3 episode of Mad Men titled "Seven Twenty Three" (2009).[2]

Solar eclipses of 1961-1964

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.[3]

Saros 145

This solar eclipse is a part of Saros cycle 145, repeating every 18 years, 11 days, 8 hours, containing 77 events. The series started with a partial solar eclipse on January 4, 1639, and reached a first annular eclipse on June 6, 1891. It was a hybrid event on June 17, 1909, and total eclipses from June 29, 1927, through September 9, 2648. The series ends at member 77 as a partial eclipse on April 17, 3009. The longest eclipse will occur on June 25, 2522, with a maximum duration of totality of 7 minutes, 12 seconds.[4]

Notes

  1. ↑ Smiley, Charles H. (February 1964). "Racing the Moon's Shadow on July 20, 1963". Journal of the Royal Astronomical Society of Canada. 58 (1): 10–12. Bibcode:1964JRASC..58...10S. The United States Air Force provided an F-104D, a Starfighter made by Lockheed, and Major William A. Cato piloted the plane from Kirkland Air Force Base in New Mexico to Uplands Airport, Ottawa. Since the duration of totality depends on the difference between the speed of the plane and the speed of the moon's shadow, we elected to fly north-west to meet the shadow, then turn and increase speed so that we would reach our maximum speed at 42,000 feet as the shadow overtook us and continue to climb, attaining 48,000 feet as the shadow left us.
  2. ↑ Episode 7: Seven Twenty Three (Details tab) http://www.amctv.com/shows/mad-men/episodes/season-3/seven-twenty-three
  3. ↑ 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.
  4. ↑ Espenak, Fred (September 26, 2009). "Statistics for Solar Eclipses of Saros 145". NASA. Archived from the original on September 30, 2009.

References

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