How to watch the solar eclipse
The solar eclipse will be visible over a 125-mile (200km) wide path which spans from coast to coast across Chile and Argentina.
However, the maximum time of four minutes and 33 seconds may be visible only to observers on boats and aeroplanes, as it will be happening over the Pacific Ocean.
Countries nearby such as Brazil, Paraguay, Uruguay and Ecuador will be able to witness a partial eclipse, as only part of the Sun will be blocked.
Totality will first make landfall over Oeno Island, a British territory in the South Pacific Ocean, at 10.24 am local time (7.24pm BST).