Astronomer whose tables and improved astrolabe served Portuguese navigators, including Vasco da Gama. Expelled twice, he wrote Sefer Yuhasin, a history of the chain of Jewish tradition, in exile.
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ר' אברהם זכות
Astronomer, historian and rabbi · 1452–c. 1515
Astronomer whose tables and improved astrolabe served Portuguese navigators, including Vasco da Gama. Expelled twice, he wrote Sefer Yuhasin, a history of the chain of Jewish tradition, in exile.
