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... Картинка дня | ... планета Астронет | ... Модифицированая юлианская дата: MJD . ... Лилианская дата: LD . ... 6-й день 15-й недели 2016-го года . 100-й день 2016-го года; до конца года 265 дней . ... 736062-й день с начала Нашей Эры . ... 09-04-2016) Суббота, 9 апреля 2016. Високосный год. ... 27-03-2016) 27 марта 2016. ... 01-01-5776) 1 нисан 5776. ... 01-07-1437) 1 раджаб 1437. ... Введите дату как dd-mm-yyyy или dd/mm/yyyy . ...

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Astropark Home . ... Hill of Infinity . Stone Calendar . ... Atop Armagh Astropark's Hill of Infinity sits the Stone Calendar. Based on ancient stone circles, it allows us to tell the time of year by the direction of Sunrise and Sunset. Imagine that all history is compressed into one year. Humans evolved only an hour ago, so two more circles have been added: the middle shows the last four days, and the inner one the final minute of December 31 st . ...

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skip to content . ... Tools Show pagesource Old revisions Backlinks Recent Changes Media Manager Sitemap Log In > . Recent Changes . ... You are here: start €Ё lbaops €Ё pmcal €Ё calendar . ... VLBI Schedule . ... Observer's Wiki . ... Edit sidebar . lbaops:pmcal:calendar . lbaops/pmcal/calendar.txt €§ Last modified: 2015/12/18 16:39 (external edit) . ... Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 3.0 Unported . ...

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... Section M-7 describes the basic problem of trigonometry (drawing on the left): finding the distance to some far-away point C, given the directions at which C appears from the two ends of a measured baseline AB. ... That means that the angle ? ... 2? r covers an angle 360њ . ... Suppose you want to estimate the distance to some distant landmark--e.g. a building, tree or water tower. ... Alpha Centauri, the sun-like star nearest to our solar system, has a distance of 4.3 years and a parallax of 0.75"....

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The Calendar of Bloody A.tecs. Living in Central Mexico from the XII century to the being of the XVI century warlike A.tecs devoted much time to sciences including astronomy. For needs of agriculture A.tecs, using the knowledge received from the forecomers, developed the exact calendar system. 52 years of the moon-and-the sun cycle formed the basis of it (something like our conception of "a century"). ... A.tecs year was divided into 18 months with 20 days each. ... Mesopotamian astronomy. ...

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