Solar Telescope Projection at the Beijing Planetarium

They had a solar telescope on the roof of the planetarium, and through a clock drive and some mirrors, projected a 1.5 meter view of the sun, spots and all, for people inside to view. Using some beam splitters, they also had a spectrographic display and this, a small solar projection where you could trace sunspots onto paper to take with you. Alas - no good sunspots, but it was impressive nevertheless.