TY - BOOK AU - Seargent,David A.J. TI - Visually observing comets T2 - Astronomer's pocket field guide SN - 9783319454344 (pbk.) AV - QB721 .S43 2017 U1 - 523.6 23 PY - 2017///] CY - Cham, Switzerland PB - Springer KW - Comets KW - Observers' manuals N1 - Includes indexes; Part I: Introducing Comets -- Part II: The Role of Visual Comet Observers in the Age of CCDs -- Part III: The Nuts and Bolts of Comet Observing ER -