Earth has acquired a second “mini-moon” about the size of a car, according to astronomers who spotted the object circling our planet.

The mass—roughly 1.9−3.5 meters (6−11 feet) in diameter—was observed by researchers Kacper Wierzchos and Teddy Pruyne at the NASA-funded Catalina Sky Survey in Arizona on the night of February 15.

“BIG NEWS. Earth has a new temporarily captured object/Possible mini-moon called 2020 CD3,” likely to be a C-type asteroid, Wierzchos tweeted on Wednesday.