Biography
**Abu al-Fath Abd al-Rahman Mansour al-Khāzini** (c. 470 H/1077 CE-c. 550 H/1130 CE, fl. 1115–1130) or, simpler, **Abu al-Fath Khāzini** (Persian: ابولفتح خازنی), short **Al-Khazini**, was a Muslim astronomer of Greek ethnicity from Merv, then in the Khorasan province of Persia (located in today's Turkmenistan).