Sundials - World's Oldest Clocks

North American Sundial Society

Solar Orientation

Introduction to sun's daily motion, seasonal change, and sunrise & sunset points on the horizon

Sunrise Project

Evan Finnian photographs sunrise every day from Sep-Dec 2015

How the Earth Moves
Earth at Night from the International Space Station

View of the Earth at night from the International Space Station

Analemma over the Pyramid at El Cerrito Mexico

Analemma over the Pyramid in El Cerrito, Queretaro, Mexico photographed over the city of Querataro