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Fill your upcoming 2016, with 16 months of Astronomy all year round. This beautiful calendar contains 16 months and 3 mini 2015, 2016, and 2017 year calendars.
Fill your upcoming 2017, with 16 months of Astronomy all year round. This beautiful calendar contains 16 months and 3 mini 2016, 2017, and 2018 year calendars.
Fill your upcoming 2016, with 16 months of Astronomy all year round. This beautiful mini calendar contains 16 months and 3 mini 2015, 2016, and 2017 year calendars.
Fill your upcoming 2016, 16 months of Astronomy calendar planner. Plan out a year in advance.
Fill your upcoming 2016, with 16 months of Astronomy weekly calendar planner. Plan out a year in advance.
Dates form the backbone of written history. But where do these dates come from? Many different calendars were used in the ancient world. Some of these calendars were based upon observations or calculations of regular astronomical phenomena, such as the first sighting of the new moon crescent that defined the beginning of the month in many calendars, while others incorporated schematic simplifications of these phenomena, such as the 360-day year used in early Mesopotamian administrative practices in order to simplify accounting procedures. Historians frequently use handbooks and tables for converting dates in ancient calendars into the familiar BC/AD calendar that we use today. But very few historians understand how these tables have come about, or what assumptions have been made in their construction. The seven papers in this volume provide an answer to the question what do we know about the operation of calendars in the ancient world, and just as importantly how do we know it? Topics covered include the ancient and modern history of the Egyptian 365-day calendar, astronomical and administrative calendars in ancient Mesopotamia, and the development of astronomical calendars in ancient Greece. This book will be of interest to ancient historians, historians of science, astronomers who use early astronomical records, and anyone with an interest in calendars and their development.
The planet Venus: orbit, appearance in our skies, the famous eight-year cycle, transits of the Sun, passages of the Pleiades, visits by spacecraft, amazing physical nature. And the goddess Venus, in Sumerian, Syrian, Greek, Roman myth. Very abundant illustrations: charts and sky scenes for years ahead, diagrams, paintings, sculptures. And abundant selections from the poetry and lore of Love.
Designed for astronomers worldwide, the almanac provides details of thousands of astronomical events from 2016 through to the end of 2020. Written by a former freelance writer for Astronomy magazine, the guide includes almost daily data and information on the Moon and planets, as well as Pluto, Ceres, Pallas, Juno and Vesta: * The phases of the Moon * Conjunctions between the Moon, planets and asteroids (including angular separation for conjunctions involving the planets and asteroids.) * Lunar and Solar eclipses * Annual summaries of when to observe the planets and asteroids * Annual summaries of notable close planetary conjunctions * Peak dates for the major meteor showers with moon phase * Dates of perihelion, aphelion, perigee and apogee for the planets and asteroids * Inferior and Superior conjunction for Mercury and Venus * Greatest Eastern and Western elongation for Mercury and Venus * Opposition and solar conjunction dates for the outer planets and asteroids * Apparent diameter changes for the planets * Magnitude changes for the planets and asteroids * Constellation changes for the Sun, planets and asteroids * Dates of the equinoxes and solstices Whether you're an expert astronomer or a casual star gazer, the almanac is the essential guide for observers everywhere. (The first edition, detailing 2015-2019, has been downloaded nearly 6,000 times and has sold hundreds of paperback copies. It was ranked #1 in Free Kindle Astronomy books, #3 in Paid Kindle Astronomy books and within the Top 50 of ALL Free Kindle Books.)
Fill your upcoming 2017, with 16 months of Astronomy all year round. This beautiful mini calendar contains 16 months and 3 mini 2016, 2017, and 2018 year calendars.