Astronaut is a 6 year old horse and has raced from 2019 to 2022. He was sired by Quality Road out of the Acatenango mare Armanda. He was trained by John Shirreffs and has raced for John O'Connor, and was bred in Kentucky, United States by Anastasie Astrid Christiansen-Croy. Astronaut has raced at Belmont at Aqueduct, Aqueduct, Belmont Park, Del Mar, Gulfstream Park, Santa Anita with wins at Aqueduct, Del Mar, Santa Anita. His stakes wins include wins in the 2022 Red Smith (G2), and the 2021 Del Mar Handicap (G2).