Shaw-IAU Workshops by the OAE

Analemmas are fascinating. Their shape arouses curiosity about what it can mean, while knowledge of their origin challenge an old notion that the sun is always in the same place at noon, every day. From the analemma, it is possible to calculate simple quantities such as the latitude of where they are observed, as well as the inclination of the earth's rotational axis. It is also possible to deduce solar mean time is constructed, and that it is only exact on four days every year. The exercise taught in this session allows students to carry out measurements of the suns motions themselves and, based on these, calculate some basic quantities in the movements in our solar system.

About Vegard Lundby Rekaa

Experienced astronomer and public speaker, who has been working with and holding lectures for children since he was a young student. Have the recent years held lectures at the Solar Observatory at Harestua for young and old.

Watch a recording of this talk (external link)