Atlas of Great Comets by Ronald Stoyan

By Ronald Stoyan

During the a long time, comets, enigmatic and gorgeous wandering items that seem for weeks or months, have alternately interested and terrified humankind. the results of 5 years of cautious learn, Atlas of significant Comets is a generously illustrated reference on thirty of the best comets which were witnessed and documented because the center a long time. targeted awareness is given to the cultural and clinical effect of every visual appeal, supported through a wealth of pictures, from woodcuts, engravings, old work and artifacts, to a exhibit of the easiest astronomical images and photographs. Following the creation, giving the huge old context and a latest clinical interpretation, the nice Comets characteristic in chronological order. for every, there's a modern description of its visual appeal besides its medical, cultural and ancient value. no matter if you're an armchair astronomer or a pro comet-chaser, this amazing reference merits a spot in your shelf.

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The year-number indicates the year of discovery. The following letter indicates the half-month of the year in which the comet was discovered. ‘A’ there­ fore covers the period from 1st to 15th January. As ‘I’ is omitted, ‘Y’ indicates the last half-month between 16th and 31st December. The subsequent number then indi­ cates the position of the comet in the series of discove­ ries in the corresponding half-month. Finally, after the code, the name of the discoverer is given in parentheses. Before this modern nomenclature was introduced in 1995, another system was used.

But it is also possible that we of the Adoration of the Magi. The modern-day popular might be dealing with another close conjunc­tion of pla­ depiction of the Star of Bethlehem as a comet should nets, where the planets appear as a single ‘star’ to the na­ there­fore been seen as purely symbolic. ked eye, or else with the appearance of a nova or super­ China. In AD 390, a great comet appeared in the sky, to which an extremely close encounter with the Earth of about 14 million kilo­ metres was also ascribed.

Barnard fought for two years to correct these claims, until the Examiner finally published an apo­logy. The identity of the originator of this canard remains uncer­ tain, although Barnard always suspected his colleague, James Edward Keeler. The twentieth century As the quality of photography and spectroscopy improved, research turned to the physics and chemistry of comets. The identification of additional components of comets became possible. In the sec­ ond half of the century, models explaining the processes occur­ ring in comets and the question of their origin took centre stage.

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