Image:Equatorial sundial topview.gif

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[edit] Summary

Description

Top view of an equatorial sundial. The hour lines are spaced equally about the circle, and the shadow of the cylindrical gnomon moves uniformly about. The height of the gnomon is 2.5 units and the outer radius of the dial is 6.0 units. This animation depicts the motion of the shadow from 3 a.m. to 9 p.m. on mid-summer's day, when the sun is at its highest declination. Sunset and sunrise occurs at 3am and 9pm on that day near the latitude 57.5°, roughly the latitude of Aberdeen or Gothenburg. Made 15 January 2008 by me using Blender.

Source

self-made

Date
Author

WillowW

Permission
(Reusing this image)

see below


[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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This file is licensed under the Creative Commons Attribution 3.0 Unported License. In short: you are free to distribute and modify the file as long as you attribute its author(s) or licensor(s). Official license

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File history

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Date/TimeDimensionsUserComment
current17:51, 15 January 2008400×300 (2.96 MB)WillowW ({{Information |Description=Top view of an equatorial sundial. The hour lines are spaced equally about the circle, and the shadow of the cylindrical gnomon moves uniformly about. The height of the gnomon is 2.5 units and the outer radius of the dial is 6)
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