Asteroid Apophis
Asteroid Apophis This artist's concept of asteroid Apophis created by The Planetary Society is free for media and educational use with attribution. It is based on Pravec et. al (2014) and shape models at Radar measurements estimate Apophis is roughly 450 meters (1500 feet) wide and 170 meters (550 feet) tall. A version with The Planetary Society's logo is available here. The Planetary Society