Isaac ibn Sid

Isaac ibn Sid was a Spanish-Jewish astronomer who flourished at the Toledo School of Translators in the second half of the thirteenth century.

Isaac ibn Sid took a leading part in the compilation of the Alfonsine Tables.

states that he saw recorded in Isaac ibn Sid's own handwriting three observations of moon eclipses made by him at the order of Alfonso.

184b) Isaac ibn Sid is termed by Alfonso "our learned Rabbi Çag."

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