03397nam a22004575i 4500001001800000003000900018005001700027007001500044008004100059020001800100024003500118050001200153072001600165072001500181072002300196072001500219072001400234100007600248245012400324250001800448264007500466300004500541336002600586337002600612338003600638347002400674490004800698520172400746650002202470650002902492650003802521650004402559700007402603710003402677773002602711776003602737776003602773776003602809830004802845856004602893978-3-031-56691-2DE-He21320251030112245.0cr nn 008mamaa240531s2024    sz |    s    |||| 0|eng d  a97830315669127 a10.1007/978-3-031-56691-22doi 4aQC6.9-9 7aPDX2bicssc 7aPH2bicssc 7aSCI0550002bisacsh 7aPDX2thema 7aPH2thema1 aKronk, Gary W.eauthor.4aut4http://id.loc.gov/vocabulary/relators/aut10aCatalog of Unconfirmed Comets - Volume 2h[electronic resource] :b1900 to the Present /cby Gary W. Kronk, Maik Meyer.  a1st ed. 2024. 1aCham :bSpringer International Publishing :bImprint: Springer,c2024.  aXXII, 414 p. 96 illus.bonline resource.  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  atext filebPDF2rda1 aHistorical & Cultural Astronomy,x2509-3118  aThis 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 comets. Each case encompasses a detailed presentation of observations, a discussion on the observer (when feasible), an examination of the historical context, and a conclusive analysis of the object's nature. The book predominantly showcases original material and photographs sourced from observatories, libraries, and historical societies worldwide; exposing a significant number of illustrations that have never been previously published. While some of these unconfirmed comets were determined to be misidentifications of minor planets, artifacts caused by emulsion or optical effects, or inaccurate observations of comets that were already under observation, the Authors did manage to identify numerous objects that were likely genuine comets. These observations hold potential value for the future, as they could be observations of periodic comets yet to be formally identified. In a handful of instances, the Authors were also able to find new observations, which led to the calculation of orbits for the first time, enabling a formal announcement, or identifying suspected comets that were already known to be periodic comets. 0aPhysicsxHistory. 0aAstronomyxObservations.14aHistory of Physics and Astronomy.24aAstronomy, Observations and Techniques.1 aMeyer, Maik.eauthor.4aut4http://id.loc.gov/vocabulary/relators/aut2 aSpringerLink (Online service)0 tSpringer Nature eBook08iPrinted edition:z978303156690508iPrinted edition:z978303156692908iPrinted edition:z9783031566936 0aHistorical & Cultural Astronomy,x2509-311840uhttps://doi.org/10.1007/978-3-031-56691-2