Activities: Observations

Navigating the Night Sky

Equatorial Sundial

Light pollution, an introduction to astronomy/environmental education

Light pollution

Working before observations

Observation of variable stars

Determining longitude and latitude

Where Are You? Locating by the Sun

Studies on the Shadow of an Obelisk Used as Horizontal Sundial

Measuring the diameter of the Sun

Observations with a Pinhole Camera

Let us measure the excentricity of the terrestrial orbit

Let us observe the daily path of the Sun