File:Gnomon at latitude 41.9N.gif
Gnomon_at_latitude_41.9N.gif (400 × 400 pixels, file size: 338 KB, MIME type: image/gif, looped, 50 frames, 50 s)
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DescriptionGnomon at latitude 41.9N.gif |
English: Animation of a vertical gnomon on the Earth surface casting shadow at five days of a year: when Sun's declination is 23.4 deg.(1st circle, red, summer solstice), 11.7 deg.(2nd circle,red), 0 (equinox, 3rd circle.magenta), -11.7 deg.(4th circle, blue), -23.4 deg.(5th circle, blue, winter solstice). Latitude: 41.9N. Declination lines of a gnomon are 4 hyperbolas and a line.Distance to the Sun is not to scale. Русский: Анимация вертикального гномона, отбрасывающего тень на землю в пять дней года: когда склонение Солнца равно 23,4 гр. (1-я окружность, красная, летнее солнцестояние), 11,7 гр.(2 окружность, красная), 0 гр. (3 окружность, фиолетовая, равноденствие), -11,7 гр. (4 окружность, синяя), -23,4 гр. (5 окружность, синяя, зимнее солнцестояние). Гномон установлен на широте 41,9 гр. в Северном полушарии. Его тень вычерчивает 4 гиперболы и прямую. Расстояние до Солнца очень сильно уменьшено.Пунктирная линия — ось мира. |
Date | |
Source | Own work |
Author | Cmapm |
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