The object will pass by at a close but safe distance from us.
The "lost" asteroid was rediscovered on May 8, nearly eight years after it vanished from observations.
Although it's larger than the Chelyabinsk meteor which entered the atmosphere and broke windows in six cities in Russian Federation, this asteroid will just graze past us. Space rock moves through space at a speed of 28,655 miles per hour (46,116 km/h).
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Unfortunately, the asteroid will not light up brightly enough to be visible to the naked eye, but small telescopes could aid you in the endeavour. Estimates of asteroid 2010 WC9's diameter range from 197 to 427 feet (60-130 meters); estimates of the Chelyabinsk meteor's size before encountering Earth's atmosphere center around 65 feet (20 meters).
Comparing this "new" object's orbit to ones previous found, the astronomers quickly realized that they had actually rediscovered a lost asteroid - 2010 WG9, which they had first spotted over 7 years ago, on November 30, 2010. So if you are deeply interested in the space rock flybys, then you can tune into the facebook page. As per the expert, this asteroid dubbed 2010 WC9 would tend to brush against our planet this week, most probably on Tuesday. The asteroid will be moving quite rapidly (30 arcseconds per minute).
The observatories of the Northold Branch in London will telecast the event live to the millions of the people across the globe.
"Our Astrometric information while this occurs, but the motion of the asteroid will happen every five minutes", explained Wells.
2010 WC9 completes one complete orbit every 1.12 years and approaches the sun as close as.78 astronomical units and as far away as 1.38 AU.