Albategni, a distinguished Arabian astronomer, born in Mesopotamia in the 9th or 10th century of our era; his observations extended over 50 years; he so improved the methods and instruments of observation as to earn the title of the Ptolemy of the Arabs.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Albany, Duchess of * Albatross