The Babylonian First Visibility of the Lunar Crescent: Data and Criterion Fatoohi, Louay J. ; Stephenson, F. Richard ; Al-Dargazelli, Stetha S. Abstract Publication: Journal for the History of Astronomy Pub Date: February 1999 DOI: 10.1177/002182869903000103 Bibcode: 1999JHA....30...51F