A light-year is 5.8 trillion miles.īetelgeuse is thousands of times brighter than our sun and some 700 times bigger. Binoculars and small telescopes will enhance the view. “Which scenario we will see is uncertain, making the event even more intriguing,” said astronomer Gianluca Masa, founder of the Virtual Telescope Project, which will provide a live webcast from Italy.Īn estimated 700 light-years away, Betelgeuse is visible with the naked eye. If it's a total eclipse, astronomers aren’t sure how many seconds the star will disappear completely, perhaps up to 10 seconds. ![]() Rather, the result could be a “ring of fire” eclipse with a miniscule blazing border around the star. It's unclear if the asteroid will obscure the entire star, producing a total eclipse. There are lingering uncertainties over those predictions as well as the size of the star and its expansive atmosphere. By observing an eclipse of a much dimmer star by Leona in September, a Spanish-led team recently estimated the asteroid to be about 34 miles wide and 50 miles long (55 kilometers wide and 80 kilometers long). The asteroid is Leona, a slowly rotating, oblong space rock in the main asteroid belt between Mars and Jupiter.Īstronomers hope to learn more about Betelgeuse and Leona through the eclipse, which is expected to last no more than 15 seconds. The star is Betelgeuse, a red supergiant in the constellation Orion. ![]() The rare and fleeting spectacle, late Monday into early Tuesday, should be visible to millions of people along a narrow path stretching from central Asia’s Tajikistan and Armenia, across Turkey, Greece, Italy and Spain, to Miami and the Florida Keys and finally, to parts of Mexico. One of the biggest and brightest stars in the night sky will momentarily vanish as an asteroid passes in front of it to produce a one-of-a-kind eclipse.
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