Asteroid 481394 (2006 SF6) is a skyscraper size object and it is set for a close approach to Earth on November 21, 2019. The estimated diameter of the object is 280 meters to 620 meters, which is about 2,034 feet, larger than most skyscrapers on Earth. The second tallest building on Earth stands at 2,073 feet, Shanghai Tower. The object will not hit Earth, it’s close approach this year is around 2,682,704 miles away from Earth.