{"product_id":"comet-story-behind-halley-s-comet-by-greg-walz-chojnacki-hc-1985-ex-lib","title":"Comet! Story Behind Halley’s Comet by Greg Walz Chojnacki HC 1985 EX-LIB","description":"\u003cbody\u003e\n\u003c!-- HTML Generated by Auction Wizard 2000 - http:\/\/www.AuctionWizard2000.com\/ --\u003e\n\n\n\u003c!-- AW2KLOT#:84856 --\u003e\n\u003cbr\u003e\n\u003ctable style=\"width:98%;padding:2px;margin:auto;border:5px outset #673434;background-color:#FDF3D0\"\u003e\u003ctr\u003e\u003ctd style=\"border:1px inset #673434;margin:5px;\"\u003e\n\u003ctable style=\"width:100%;border:0px;padding:5px;\"\u003e\n\u003ctr\u003e\u003ctd\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\n\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eRailroadTreasures\u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eoffers the following item:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Times New Roman;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\";padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eComet! Story Behind Halley’s Comet by Greg Walz Chojnacki HC 1985 EX-LIB\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eComet! Story Behind Halleys Comet by Greg Walz Chojnacki HC 1985 EX-LIBEx-Library Book\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCopyright 1985\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eHard Cover\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e64 Pages\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThere are two reasons it's fun to look into the night sky. First, the patterns of light and motion we find beyond our planet\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\n\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eare among the most beautiful nature has to offer. Second, when we ask what those patterns of light \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:italic;text-decoration:none;\"\u003ereally are, \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003ewe discover some of the strangest and most fascinating things our minds can encounter.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\n\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eA comet provides the perfect opportunity to enjoy the double fun of astronomy. Nothing matches the sight of a comet's glowing head and wispy tail hanging above the horizon. And because comets are so unusual, it's natural to wonder \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:italic;text-decoration:none;\"\u003ewhy \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003ethey're so different. Why do they appear so suddenly - then disappear just as quickly? What are they really? Where do they come from?\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eIn the following pages, you'll see that the mystery of comets matches their beauty. In fact, comets are among the most challenging puzzles of astronomy. As you find out what we know - and don't know - about comets, you'll see why astronomers are so excited about Comet Halley.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\n\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eOf course, \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:italic;text-decoration:none;\"\u003eyou're \u003c\/span\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eexcited about the chance to see a comet! One aim of this book is to help you get the best possible look at Halley's Comet.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eYou may have heard that the coming appearance of Comet Halley is going to be disappointing. Nothing could be further from the truth. This may be the best return of Halley ever: With our ability to reach into space, we have the opportunity to make many new discoveries about comets. A second purpose of this book is to help you share the excitement of these discoveries.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAs you observe Halley, you may discover a third - perhaps the most important - reason people enjoy stargazing. Looking into the vast universe, you may suddenly find yourself thinking about our own planet from a completely new and satisfying point of view. If you have this experience while observing Comet Halley, you'll find that this once-in-a-lifetime return is just the beginning of a lifetime of discovering the universe and our place in it.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eWhile only the author's name appears on the cover of this book, most of the staff of AstroMedia Corp. contributed to this project; my thanks especially to Nancy Mack, Pat LaBrecque, Jane Borth Lucius, Mary Algozin, Susan Poole, and Mary MacAdam for their help (and patience!). Thanks also to my friend Frank Reddy for both his excellent maps and excellent advice. Dan Green of the Harvard Astrophysical Center contributed helpful comments on early drafts of the manuscript. Finally, special credit goes to Ruth Freitag of the Library of Congress, whose compilation of historical images proved so useful.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCONTENTS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eIntroduction4\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAn Ancient Puzzle5\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eWhat Is a Comet?11\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eWhere Do Comets Come From?17\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eDo Comets Affect Earth?23\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThe Halley Missions29\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThe Return of Halley's Comet37\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eProjects\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eBuild a Comet50\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eLooking for Meteors55\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThe View From Space60\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eIndex62\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eGlossary64\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAll pictures are of the actual item.  If this is a railroad item, this material is obsolete and no longer in use by the railroad.  Please email with questions. 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Please e-mail us with any questions before bidding.   \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThanks for looking at our items.   \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\";padding:5px\"\u003e\n\u003cdiv style=\"text-align:center;width:99.9%;margin:auto\"\u003e\n\n\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/table\u003e\n\n\u003c\/body\u003e","brand":"RailroadTreasures","offers":[{"title":"Default Title","offer_id":44241852661956,"sku":"392264997670","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2232\/7333\/files\/57_c45a825e-d5c9-4b64-b053-182c2ef70cf8.jpg?v=1727916798","url":"https:\/\/railroadtreasures.com\/products\/comet-story-behind-halley-s-comet-by-greg-walz-chojnacki-hc-1985-ex-lib","provider":"RailroadTreasures","version":"1.0","type":"link"}