A fast-moving asteroid a stretch of a city retard gave Earth a tighten trim today, zooming safely past during 6:05 p.m. EDT during a stretch of about 126,000 miles. That’s about half a stretch from a Earth to a moon and a closest proceed a asteroid will have done in scarcely 300 years, EarthSky.org reported.
The space rock, famous as 2010 WC9, was relocating during roughly 29,000 miles per hour as it passed. It has a diameter of 60 to 134 meters, or roughly 200 to 400 feet — “as large opposite as a city block,” Dr. Erin Ryan, an asteroid consultant during NASA’s Goddard Space Flight Center in Greenbelt, Maryland, told NBC News MACH in an email.
Big as it is, a asteroid was too gloomy to be seen with a exposed eye even during a flyby. But Northolt Branch Observatories, an astronomy organisation in London, England, livestreamed telescopic views of a asteroid on a Facebook page in a days heading adult to a flyby.
Dr. Paul Chodas, executive of a Center for Near-Earth Object Studies during a NASA Jet Propulsion Laboratory in Pasadena, California, and a remarkable consultant on asteroids, pronounced astronomers dependent with a NASA-funded Catalina Sky Survey detected 2010 WC9 in 2010 and fast dynamic that it acted no hazard to Earth. “We knew adequate not to be worried,” he said.
But what if an asteroid a stretch of WC9 were to strike Earth? If it were done of hilly material, Ryan said, it competence emanate a tiny void and break windows — as happened in 2013, when a meteor entering a atmosphere blew adult over Chelyabinsk, Russia. But some asteroids are done of metal, and if one a stretch of WC9 were to strike us, she said, “you’d get a void about as large as Meteor Crater.”
Meteor Crater, about 19 miles west of Winslow, Arizona, is about 4,000 feet in hole and about 600 feet deep.
That competence sound frightful even to contemplate, though astronomers contend there’s no need to be overly endangered about an asteroid strike.
An asteroid roughly a stretch of 2010 WC9 collides with Earth usually about once each 6,000 years, Chodas said. And as Dr. Amy Mainzer, another asteroid consultant during a Jet Propulsion Laboratory, told MACH in December, “There are no objects that have been identified that are famous to be on a collision march with Earth.”