2004 Lexell, provisional designation , is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7.5 kilometers in diameter. The asteroid was discovered on 22 September 1973, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula, and later named for Swedish-Russian astronomer and mathematician Anders Johan Lexell.
