Abraham Zacuto
Spanish Jewish astronomer and rabbi (1452 – c.1515) / From Wikipedia, the free encyclopedia
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"Zacuto" redirects here. For the American technology company, see Zacuto (camera accessories).
Abraham Zacuto (Hebrew: אַבְרָהָם בֵּן שְׁמוּאֵל זַכּוּת, romanized: Avraham ben Shmuel Zacut, Portuguese: Abraão ben Samuel Zacuto; 12 August 1452 – c. 1515) was a Castilian astronomer, astrologer, mathematician, rabbi and historian who served as Royal Astronomer to King John II of Portugal.
His astrolabe of copper, his astronomical tables and maritime charts played an important role in the Spanish and Portuguese navigation capability. They were used by Vasco Da Gama and Christopher Columbus.[1]