Horizontal Sundial Functions


 Cable Gnomon Support Structure

Gnomon:

The gnomon's shadow shows Standard (watch) time if adjusted for The Equation of Time.

Nodus:

The shadow of the nodus shows the date and solar declination (on my heliochronometers only).

Brass Finial:

The finial's shadow shows the solar azimuth and altitude. It also shows the time and direction of sunrises and sunsets.

Counterweight:

This applies tension to the cable gnomon to keep it perfectly straight.