Planar Sundial
The Planar Sundial will calculate any plane surface sun shadow for any angle of gnomonic declination, angle to zenith, any longitude, latitude and for any time of year. Also shown is the equation of time and longitude correction factors.
Polar format output
Rectangular format output
Equation of Time Plots
Sundial Examples
Annual Analemma - true sun shadow for year and hours
Graphics Examples courtesy Dover Books
False Analemma (only angle is preserved not outline.
Graphics Examples courtesy Dover Books
True Analemma offsets for angle preservation
Graphics Examples courtesy Dover Books
Cube surface sundial
Graphics Examples courtesy Dover Books
Analemma Sundial Example
Graphics Examples courtesy Dover Books
Another many surface Sundial Example
My First Pocket Sundial
I used a nice piece of interesting Oak I had from pallets. After planning and dimensioning I next scanned the images and printed on tracing paper (vellum) and used Elmers Wood Glue to attach and then clear acrylic sprayed the inside face. I "Golden oak" stained the outside after sanding and beveling the outside. Then coated with the same clear acrylic spray.
Second cut at it. I made a set for my brothers. Very unusual wood patters.
My AstroCompass
got this beauty at garage sale for $15. Worth $300
The box has since been refurnished and looks all new.
I'll have to get this updates.
AstroCompass Manual - PGE's site with a manual for the AstroCompass