Escola Secundária de Loulé (Portugal)
Blue stars, white stars, yellow stars, orange stars and red stars. You have many colours for stars. But not all colours. There aren’t any green stars.
Stellar spectra analysis requires the use of spectroscopes that can easily be constructed by teachers in the classroom with their students. The workshop will consist of the construction of a spectroscope and of simple experimental demonstrations that will answer to the question.