Build an EarthDial
Specifications for an EarthDial
The measurements and necessary components for a standard EarthDial
How to Build an EarthDial
Step-by-step instructions (also available in PDF format or as a summary in Spanish)
How to Read a Sundial
What time is it?
Face, furniture, gnomon, gnomonicist, motto, style
Calculates the locations of the lines on the face of the EarthDial for your latitude
The Planetary Fund
Help us accelerate progress in our four core enterprises: Robotic Space Exploration, Human Space Exploration, Planetary Defense, and The Search for Life.