Betrachtung und Bedencken Uber den Im Monath Decemb. des verwichenen, und im Januario dieses 1681. Jahrs, erschienenen recht entsetzlichen Cometen, Darinnen dessen Ursprung, Erscheinung, Figur, Farbe, Schweif, Höhe, Grösse sein sondebahrer Lauf, Würckung und Bedeutung, unvorgreifflich zu ferneren Nachdenken, wohlmeinend zu buszfertigen Andencken auf Begehren vorgestellet worden by ANON

One fine folding engraved plate & one large astronomical woodcut illus. in the text. 19 [i.e. 31] pp. Small 4to, modern wrappers. N.p.: 1681. First edition of this rare and highly detailed anonymous observation of the famous comet of 1680-81. Apart from its brightness, this comet is notable as the first to be observed using a telescope (by Gottfried Kirch in Coburg). Other well-known observers included Robert Hooke, Flamsteed, Newton, and John Evelyn. The author of this work clearly had a scientific background; he provides very detailed descriptions of the appearance of the comet, its path, and significance. The fine folding plate depicts the comet's path through the constellations. Fine copy and scarce. ❧ Kronk, Cometography, I, pp. 369-73.