A 'ring of fire' just appeared in the sky over Antarctica. Here's what happened during today's annular solar eclipse.

A magnificent annular solar eclipse just swept over Antarctica, putting on an impressive display of orbital mechanics as the moon passed in front of the sun at the perfect distance from Earth to create a fiery halo in a darkened sky  —  at least for the few souls lucky enough to be in a position to see it.

Feb. 17's annular solar eclipse occurred as the lunar disk slipped between the sun and Earth during its new moon phase. The alignment occurred as the moon travelled through a distant point in its elliptical orbit, making it appear smaller than usual in Earth's sky.

Today's eclipse got underway at 4:56 a.m. EST (0956 GMT), as the moon took an ever greater bite out of the solar disk, transforming its burning orb into a glowing crescent, before finally diving entirely within its fiery expanse. The moon — appearing fractionally smaller than usual — was unable to cover the entirety of the sun's disk, leaving a thin sliver of its outer edge visible to surround Earth's natural satellite to create a ring in the skies over Antarctica.

Source: www.space.com

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