Solar eclipse of August 10, 1980

{{short description|20th-century annular solar eclipse}}

{{Infobox solar eclipse|1980Aug10

| previous = Solar eclipse of February 16, 1980

| next = Solar eclipse of February 4, 1981

}}

An annular solar eclipse occurred at the Moon's ascending node of orbit on Sunday, August 10, 1980,{{cite web|title=August 10, 1980 Annular Solar Eclipse|url=https://www.timeanddate.com/eclipse/solar/1980-august-10|publisher=timeanddate|access-date=8 August 2024}} with a magnitude of 0.9727. 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. Occurring about 5 days before apogee (on August 15, 1980, at 19:00 UTC), the Moon's apparent diameter was smaller.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1980&n=136|publisher=timeanddate|access-date=8 August 2024}}

Annularity was visible in Tabuaeran of Kiribati, Peru, Bolivia, northern Paraguay and Brazil. The whole path of annularity was east of the 180th meridian, seeing the eclipse on August 10. (However, time zone of the Line Islands including Tabuaeran was changed from UTC−10 to UTC+14 in 1995. The date of the eclipse would be August 11 if observing the present day's time zone.)

A partial eclipse was visible for parts of eastern Oceania, Hawaii, the southern United States, Mexico, Central America, the Caribbean, and South America. Most of these areas are east of the 180th meridian, seeing the eclipse on August 10, while very few islands in the Pacific Ocean are west of the 180th meridian, seeing the eclipse on August 11.