This two-volume catalog is the first in-depth investigation of comets that were reported since the 17th century but not confirmed and subsequently lost. Volume 2 covers objects observed between 1900 and the present, a period that was dominated by photographic observations and the detection of much fainter objects.

This book provides a distinctive blend of the historical and cultural aspects of comet hunting and discovery, along with the utilization of contemporary tools in orbital mechanics and data analysis. This comprehensive compilation offers a thorough catalog of unconfirmed...