But despite its size, astronomers managed to take a picture of it against a backdrop of stars, describing it as an “extremely close approach”.
The Virtual Telescope Project, which photographed the space rock, said: “The near-Earth asteroid 2020 RF3 had an extremely close, but safe, approach with our planet, reaching a minimum distance from the Earth of about 92000 km, 0.24 times the average distance of the Moon.
“We managed to capture it a few hours before.
“At the imaging time, asteroid 2020 RF3 was at about 400000 km from the Earth, basically the lunar distance, and it was still safely approaching us.
READ MORE: Asteroid news: NASA tracks three rocks making near-Earth approach