Everything You Should Know About October’s ‘Ring of Fire’ Solar Eclipse

The spectacular "ring of fire" phenomenon, seen during an annular solar eclipse, will once again captivate skywatchers this October. Last observed in April, when a solar eclipse passed over eleven U.S. states, another celestial event is on the horizon. This time, an annular solar eclipse will be visible across parts of South America on Wednesday, October 2, and a partial eclipse will be viewable in several other regions. Here’s all the essential information you need ahead of this eagerly awaited event.

What Is an Annular Solar Eclipse, Also Known as the "Ring of Fire"?

An annular solar eclipse occurs when the moon moves directly between the Earth and the sun, but due to its position in orbit, it only covers a portion of the sun's surface. Unlike a total eclipse, where the sun is entirely obscured, this partial covering leaves a brilliant ring of light around the moon, creating the stunning "ring of fire" effect.
According to NASA, this happens because, during an annular eclipse, the moon is farther away from Earth than it would be in a total eclipse. Solar eclipses in general occur about two to five times a year in various parts of the globe. However, total solar eclipses are rarer, happening roughly every year or two. The next total eclipse will not occur until 2026 and will be visible over parts of Greenland, Iceland, and Spain.

Where and When Can You See the "Ring of Fire" Solar Eclipse?

This October, the annular eclipse will be visible from certain regions in southern Chile and Argentina. Space.com notes that only around 175,000 people live along the path where the full annular eclipse will be visible, a stark contrast to April's eclipse, where 32 million U.S. residents were located within the path of totality.
The exact timing of the eclipse will vary slightly depending on your location. In Chile and Argentina, the "ring of fire" will last between 3 to 6 minutes, and will take place just before 5:30 p.m. local time. For those on Rapa Nui, also known as Easter Island, the annular eclipse will be visible around 2:03 p.m. local time.
Some prime viewing locations include Argentina’s Perito Moreno National Park, Puerto Deseado, and Puerto San Julián, as well as the town of Cochrane in Chile.

Where Will the Partial Solar Eclipse Be Visible?

Alongside the full annular eclipse, a partial eclipse will be visible in surrounding regions roughly 85 minutes before and after the main event. Viewers in parts of South America, Antarctica, and portions of North America, along with those across the Atlantic and Pacific Oceans, including Hawaii, will be able to catch the partial eclipse.
NASA’s website provides a comprehensive map detailing the path of the eclipse and shows the percentage of coverage visible in different parts of the world. Noteworthy locations to view the partial eclipse include Buenos Aires in Argentina, São Paulo in Brazil, and Asunción in Paraguay.

How to Safely View the Annular Solar Eclipse