Nearly eight years later, astronomers realized that an asteroid they temporarily called ZJ99C60 was actually 2010 WC9 returning. It can be inferred from this that the asteroid would pass somewhere midway in between the moon and the Earth. The size of the 2010 WC9 is estimated to be between 197 feet to 427 feet (60 meters to 130 meters). Again find a heavenly body was only may 8, 2018. The football field-sized asteroid is dubbed 2010 WC9.
This is the second large asteroid to make a close approach to Earth in recent months.
What is not very reassuring, however, is that no one had been able to anticipate its arrival: it had only been discovered the day before its flyby through the Catalina Sky Survey, a time too short to anticipate or prevent the disaster it would have caused by falling on Earth.
The asteroid will fly over the earth at a staggering 28,000 miles per hour and it will be between 60 and 130 meters.
The asteroid of 18 magnitudes is fainting and now at +15 mag. Experts suggest it might get as bright as +11 mag when it closely passes from the Earth.
An asteroid the size of New York City's Statue of Liberty is expected to buzz by Earth Tuesday, and this time, scientists are ready and waiting.
A "lost" asteroid will be whizzing across our skies on May the 14th!
We are planning to broadcast this asteroid live to our Facebook page on the night of May 14, likely around midnight, if the weather forecast remains positive. But, persons wishing to see the asteroid can tune in to Slooh, the astronomy broadcasting service beginning at 4 pm Alaska time. The asteroid will proceed pretty quickly (30 minutes of arc per second).
The Minor Planet Center indicates that 2010 WC9 is an Apollo type asteroid, just like the infamous Chelyabinsk meteor that exploded over Russian Federation in 2013, injuring around 1,500 people. At closest approach, 2010 WC9 will be moving at 0.22 degrees (that's 13 arcminutes, about half the span of a Full Moon) per minute through the constellation Pavo the Peacock shining at magnitude +10, making it a good telescopic object for observers based in South Africa as it heads over the South Pole.