North America, Hawaii and Antarctica all go dark for total solar eclipse

Written by Staff Writer at CNN

The world’s only total solar eclipse of 2018 will take place across Antarctica.

The total eclipse will take place October 11 over an area dubbed the South Atlantic Terrain, which is more commonly referred to as the north coast of South America, at a distance of approximately 12 miles (20 kilometers) above sea level. The eclipse begins in Bolivia, near the southern tip of the continent, and will reach its maximum at approximately 9:04 a.m. EDT.

The full South American eclipse:

The solar eclipse will be visible from remote areas of Brazil, Argentina and Antarctica. Scientists also plan to gather data and photos for a suite of cutting-edge detection and classification tools to study polar regions.

Some aspects of a total solar eclipse are known about by degree, and it’s known that the moon is “lidless,” since its solar photosphere (the corona) is not fully illuminated from the moon’s perigee (the point in its orbit that the sun is at highest in the sky). The moon and Earth are also near their apogee (closest point in their orbits).

But some elements of a total solar eclipse remain mysterious and understudied. Despite the fact that there are more than a dozen optical instruments used in photometry, the ability to distinguish an exact geographic place during an eclipse is still a surprise to many amateur astronomers.

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Underwater photographers taking pictures of the total solar eclipse are scanning for objects that are invisible to the naked eye, such as tiny pinholes or outcrops of ice. “A map of the sky in an eclipse is particularly difficult to work with, and without this, we can’t access information on what types of material to look for,” said Michele Barish, senior research scientist at the Gemini Observatory in Hawaii.

Polar explorer Sal Rosario will also take a photograph that uses microwave radiation as the main astronomical instrument. The image will be used for astronomy research in the future.

Follow live on Twitter on October 11, when the eclipse begins, for live analysis and viewing reports from some of the top photographers. You can also click on the links below for more information and links to the live stream.

Click here for the full itinerary from Barish and others.

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