Cometary Science Newsletter Issue 45 December 2018 https://www.cometarysciencenews.org/ - Refereed Journal Articles + Models of Rosetta/OSIRIS 67P Dust Coma Phase Function, Moreno et al. + Fine-scale structure in cometary dust tails I: Analysis of striae in Comet C/2006 P1 (McNaught) through temporal mapping, Price et al. + Comet C/2013 V5 (Oukaimeden): Evidence for Depleted Organic Volatiles and Compositional Heterogeneity as Revealed through Infrared Spectroscopy, DiSanti et al. + A Tale of “Two” Comets: The Primary Volatile Composition of Comet 2P/Encke Across Apparitions and Implications for Cometary Science, Roth et al. + Photometric Study of Comet C/2014 S2 (PANSTARRS) After the Perihelion, Betzler et al. + Distant Comet C/2017 K2 and the Cohesion Bottleneck, Jewitt et al. Read this issue online: https://www.cometarysciencenews.org/issues/issue-0045.html Submit your items for the next CSN: https://www.cometarysciencenews.org/submit/ Subscribe/unsubscribe to email notifications: https://www.cometarysciencenews.org/subscribe/ -- The Cometary Science Newsletter is dedicated to sharing and furthering cometary science. CSN invites contributions from the astronomical and planetary science communities, including abstracts of papers accepted for publication in refereed journals, thesis abstracts, timely notes on particular comets, conference announcements, job announcements, or other relevant and brief scientific communications. Relevant topics include observational, theoretical, and laboratory work concerning comets, but also may include studies of associated phenomena, such as Centaurs, asteroid-comet transition objects, debris disks, and protoplanetary disks.