Back كسوف الشمس في 21 أغسطس 2017 Arabic Сонечнае зацьменне 21 жніўня 2017 года Byelorussian Eclipsi solar del 21 d'agost de 2017 Catalan Zatmění Slunce 21. srpna 2017 Czech Sonnenfinsternis vom 21. August 2017 German Eclipse solar del 21 de agosto de 2017 Spanish 2017ko abuztuaren 21eko eguzki eklipsea Basque خورشیدگرفتگی ۲۱ اوت ۲۰۱۷ Persian Éclipse solaire du 21 août 2017 French ליקוי החמה המלא ב-21 באוגוסט 2017 HE

Solar eclipse of August 21, 2017

Solar eclipse of August 21, 2017
Totality from Madras, Oregon
Map
Type of eclipse
NatureTotal
Gamma0.4367
Magnitude1.0306
Maximum eclipse
Duration160 s (2 min 40 s)
Coordinates37°00′N 87°42′W / 37°N 87.7°W / 37; -87.7
Max. width of band115 km (71 mi)
Times (UTC)
(P1) Partial begin15:46:48
(U1) Total begin16:48:32
Greatest eclipse18:26:40
(U4) Total end20:01:35
(P4) Partial end21:04:19
References
Saros145 (22 of 77)
Catalog # (SE5000)9546

The solar eclipse of August 21, 2017, dubbed the "Great American Eclipse" by some media,[1] was a total solar eclipse visible within a band that spanned the contiguous United States from the Pacific to the Atlantic coasts. It was also visible as a partial solar eclipse from as far north as Nunavut in northern Canada to as far south as northern South America. In northwestern Europe and Africa, it was partially visible in the late evening. In northeastern Asia, it was partially visible at sunrise.

Prior to this event, no solar eclipse had been visible across the entirety of the United States since June 8, 1918; not since the February 1979 eclipse had a total eclipse been visible from anywhere in the mainland United States.[2] The path of totality touched 14 states, and the rest of the U.S. had a partial eclipse.[2] The area of the path of totality was about 16 percent of the area of the United States,[3] with most of this area over the ocean, not land. The event's shadow began to cover land on the Oregon coast as a partial eclipse at 4:05 p.m. UTC (9:05 a.m. PDT), with the total eclipse beginning there at 5:16 p.m. UTC (10:16 a.m. PDT); the total eclipse's land coverage ended along the South Carolina coast at about 6:44 p.m. UTC (2:44 p.m. EDT).[2] Visibility as a partial eclipse in Honolulu, Hawaii began with sunrise at 4:20 p.m. UTC (6:20 a.m. HST) and ended by 5:25 p.m. UTC (7:25 a.m. HST).[4]

This total solar eclipse marked the first such event in the smartphone and social media era in the United States. Information, personal communication, and photography were widely available as never before, capturing popular attention and enhancing the social experience. The event was received with much enthusiasm across the nation; people gathered outside their homes to watch it, and many parties were set up in the path of the eclipse. Many people left their homes and traveled hundreds of miles just to get a glimpse of totality, which few ever get to experience. Marriage proposals were timed to coincide with the eclipse, as was at least one wedding.[5][6] Logistical problems arose with the influx of visitors, especially for smaller communities.[7] The sale of counterfeit eclipse glasses was also anticipated to be a hazard for eye injuries.[8]

The next solar eclipse that crossed the United States occurred on April 8, 2024 (12 states). Future solar eclipses that cross the United States will occur on August 23, 2044 (3 states), and on August 12, 2045 (10 states). Annular solar eclipses—wherein the Moon appears smaller than the Sun—occurred in October 2023 (9 states) and will occur in June 2048 (9 states).

  1. ^ See, e.g., Steed, Edward (September 4, 2017), "The Great American Eclipse of 2017", The New Yorker, retrieved October 29, 2017; Massimino, Mike (narrator) (August 22, 2017), The Great American Eclipse, Science Channel, retrieved October 29, 2017; Redd, Nola Taylor (September 29, 2017), "What the 2017 Solar Eclipse Taught Us About Boosting Public Interest in Science", space.com, Purch Group, retrieved October 29, 2017; Zhang, Michael (September 22, 2017), "A Near-IR Photo of the Moon's Shadow During the Great American Eclipse", PetaPixel, retrieved October 29, 2017; Lakind, Sean (September 12, 2017), "The Great American Eclipse And Its Effect On Retail Traffic", Forbes, retrieved October 29, 2017.
  2. ^ a b c Chan, Melissa (July 25, 2017). "The 2017 Total Solar Eclipse: Everything You Need to Know". Time. Retrieved August 22, 2017.
  3. ^ Wolfram, Stephen (August 15, 2017). "When Exactly Will the Eclipse Happen? A Multimillenium Tale of Computation". Wolfram Blog. Retrieved August 17, 2017.
  4. ^ "How to view the partial solar eclipse in Hawaii". KHON2 Nexstar Media Group. August 15, 2017. Archived from the original on August 22, 2017. Retrieved August 21, 2017.
  5. ^ ABC News (August 22, 2017). "Total solar eclipse experience from coast to coast". Archived from the original on December 22, 2021 – via YouTube.
  6. ^ Celestron (September 26, 2017). "Eclipse Across America" – via YouTube.
  7. ^ Cite error: The named reference Illegal Camping in the American West was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference cbc-amazonrecall was invoked but never defined (see the help page).
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