Asteroids in fiction
After Ceres, Asteroid 433 Eros is perhaps the most-commonly mentioned asteroid, probably because it is one of the largest near-Earth asteroids.
Near-Earth object
As of January 4, 2019 and mostly using the crude estimate from an absolute magnitude, 897 NEAs listed by CNEOS, including 156 PHAs, measure at least 1 km in diameter, and 8,452 known NEAs are larger than 140 m in diameter.
The smallest known near-Earth asteroid is with an absolute magnitude of 33.2, corresponding to a diameter of about . The largest such object is 1036 Ganymed, with an absolute magnitude of 9.45 and a diameter of about .