Sunny Day, I invite you to come and check out the “Dialling Guide”.
The purpose of the "Dialling Guides" is to provide an easy method for laying out the hour lines for a number of horizontal and vertical sundials located at various latitudes in either the Northern or Southern Hemispheres. The "Dialling Guide" is designed to show local apparent or solar time. There are a total of 81 "Dialling Guides" that cover the range of latitudes from 25° to 65° inclusive in increments of 0.5°. Each "Dialling Guide" illustrates how to lay out the hour lines for the following sundials in minimum time increments of 5 minutes: 1. Horizontal Sundial - Northern Hemisphere 2. Horizontal Sundial - Southern Hemisphere 3. Vertical Direct South Sundial - Northern Hemisphere 4. Vertical Direct North Sundial - Southern Hemisphere 5. Vertical Direct North Sundial - Northern Hemisphere 6. Vertical Direct South Sundial - Southern Hemisphere The sundials are numbered on the "Dialling Guides" as indicated above. For any given latitude the "Dialling Guides" can be used to design the following sundials: 1. Horizontal Sundial 2. Vertical Direct South Sundial 3. Vertical Direct North Sundial In order to design these three sundials for a given latitude, two "Dialling Guides" must be obtained. The "Dialling Guide" for the desired latitude is required for the horizontal sundial and one for the co-latitude is required for the vertical direct south and north sundials. This is easy to do. Just find a "Dialling Guide" close to your latitude in the table and you will have one of your "Dialling Guides". The one for your co-latitude is on the same line. Don't forget the instructions. The “Dialling Guides” are free! I plan to offer custom “Dialling Guides” for both horizontal and vertical sundials designed for your specific location. These will be available in both local apparent (solar) or zonal solar (longitude corrected) time versions. You will find the “Dialling Guides” at the following address: www.mysundial.ca/sdu/sdu_dialling_guides.html If you have time check out the "Correct-A-Dial" Calculator and the "Dialling Buddy". Happy Dialling! Carl Sabanski www.mysundial.ca -
