5148 Giordano (5557 P-L) is a main-belt asteroid discovered on October 17, 1960 by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory.
The asteroid was subsequently designated 5148, as a permutation of Bruno's birth year (1548).
Another asteroid related (with his name) to Giordano Bruno is 13223 Cenaceneri named after work of him La Cena delle Ceneri ("The Dinner of the Ashes") in which, for the first time in Western philosophical thought, there is discussion of the infinity of worlds in the universe. He published it in 1584.