A recent paper [1] published in this journal con- tains many serious omissions and errors, including several gross mistrepresentations of my own work. The hypothesis that Christopher Columbus navi- Gated celestially by means of lower culminations is An old and discredited one. In 1993 and 1994, I Suggested that these stars might not have been Visible at such low altitudes. Moonlight [2] is par- Ticularly important to the visibility issue: the moon Was over 90 percent full [3] on those nights around February 3, 1493, when it has been proposed Columbus made a celestially triggered turn east- Ward.
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