{ "item_title" : "Transits of Mercury and Venus", "item_author" : [" Pier Paolo Ricci "], "item_description" : "This volume is the most complete updated catalogue on the transits of Mercury and Venus from -2000 BC to 4000 AD. All calculations are based on the latest theories on the motion of Mercury and Venus and a great space is given to the maps and to the details of the times. In fact, not only the times of the maximum transit were calculated, but also the beginning and end of each phase, the curves of the exterior and interior ingress and egress, the position angle, the least angular distance between the centres, the best topocentrical sites, minimum and maximum duration, with details about where all this happens, and other. A detailed discussion was made, six millennia of data, which may be useful for historical researches but also for stargazing astronomers and professionals.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/29/144/686/1291446869_b.jpg", "price_data" : { "retail_price" : "64.93", "online_price" : "64.93", "our_price" : "64.93", "club_price" : "64.93", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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