Alfonso's scientific interests—he is sometimes nicknamed the Astrologer (el Astrólogo)—led him to sponsor the creation of the Alfonsine tables, and the Alphonsus crater on the moon is named after him.
Ketertarikan ilmiah Alfonso—ia terkadang dijuluki sang Astrolog (el Astrólogo)—membuatnya mensponsori pembuatan Tabel Alfonsine, dan Kawah Alphonsus di bulan dinamai sepertinya.