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There are materials that may be of interest to complement the main subject of "Eratosthenes project".

They have been prepared by members of the EAAE:

Solving problems with a solar motion demonstrator

Luminosity and temperature of the Sun

Aristarcho's proportions

Determining latitude and longitude observing only one star

Let us observe the daily path of the Sun

The Sun and its daily and annual paths

Making helioscopes with four sticks

Measuring the diameter of the Sun

Sunrise ans sunset positions change every day

The Sun above and below the local horizon

Building simple sundials

Observations with a pinhole camera

Study of the Sun rotation

Latitude gnomon and quadrant for the whole year

Studies on the shadow of an obelisk used as horizontal sundial

Where are you? Locating by the Sun

 

© EAAE - European Association for Astronomy Education 2022