Travel usa for A long-tailed comet might well appear to be pinpointing one particular structure, if that structure is located on the visible horizon and the observer is located on the directly opposite side of the structure to the comet figs FIG A wood engraving of the Great Southern Comet of standing up over the horizon, as viewed from Melbourne Observatory on February , From The Illustrated Australian News. The comet grew a tail as long as degrees, although it was only about third magnitude at the time. Image credit State Library of Victoria accession FIG A lithograph by Charles Piazzi Smyth The Great Comet of as seen at the Cape of Good Hope on March th in the evening S Lat Image credit ? The Royal Society image number RS NOTE On Charles Piazzi Smyth’s fascinating career, see Brian Warner, Charles Piazzi Smyth, Astronomer-Artist His Cape Years, ? Cape Town A. A. Balkema, ; and Roberta J. M. Olson and Jay M. Travel usa 2016.