Asteroid
The dwarf planet Ceres is by far the largest asteroid, with a diameter of . The next largest are 4 Vesta and 2 Pallas, both with diameters of just over . Vesta is the only main-belt asteroid that can, on occasion, be visible to the naked eye. On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis.
2018 GE3
In observational history, and other than possibly 2002 MN and , this asteroid is the largest known object to ever pass that close to Earth, as well as the Moon "(also see History of closest approaches of large near-Earth objects)". 99942 Apophis will break both of these records when it approaches only from Earth on 13 April 2029.