View source for Vertical Sundial Designer

[[File:VerticalSundialEG.png|250px|right|link=http://www.amazon.co.uk/gp/product/B00570NKF0/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=B00570NKF0&linkCode=as2&tag=dton06-21]]
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=====Description=====

Vertical Sundial 


=====Features and Applications=====

As with a '''Horizontal Sundial''' the '''[[Sundials and Gnomons|Gnomon]]''' remains pointing North and set at an angle '''''to the horizontal''''' equal to the '''[[Latitude]]''' of the '''Sundial''' location. The '''[[Sundials and Gnomons|Gnomon]]''' therefore must be set at an angle to the 'dial'  of 90<small><sup>0</sup></small>. minus '''[[Latitude]]'''.


Ideally, the 'dial' of a '''Vertical Sundial''' should be fixed to a South-facing wall or surface. In this situation the '''[[Sundials and Gnomons|Gnomon]]''' is located in a plane at right angles to the 'dial' and will cast a vertical shadow at Noon. If placed on a wall which is not South-facing ''(e.g. S.E. or S.W.)'' then the '''[[Sundials and Gnomons|Gnomon]]''' will need to be angled to the 'dial' such that the shadow cast at Noon remains vertical and is said to be [https://en.wikipedia.org/wiki/Declination '''Declined'''] East or West as appropriate.


{{Packaging Designer Guide}}
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<span style="color: green">'''Note:'''</span>
* <span style="color: green">In the table below, enter the '''[[Latitude]]''' of where your '''Sundial''' will be located.</span>
* <span style="color: green">Since the main purpose of this '''Sundial Designer''' is to establish the correct angles for the '''Hour LInes''', a simple screen '''Print-out''' will often be sufficient to transfer these on to your actual 'Dial Plate'.</span>
* <span style="color: green">Alternatively, the table also provides the number of degrees for each '''Hour Line''' away from the Noon position and can be marked out directly on to your 'Dial Plate' material. </span>
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<dtapollonius dwg="/images/4/4b/Sundial_vertical.txt"></dtapollonius>


{{Sundials Buyers Guide}}

[[Category:Sundials]]