Erklärung: \"The armillary sphere is a representation of the celestial sphere, which was already used by the Greeks in the III century b.C. Its name comes from the latin armilla (circle, bracelet), since it has a skeleton made of graduated metal circles, representing the equator, the ecliptic, meridians and parallels.
Erklärung: \"The armillary sphere is a representation of the celestial sphere, which was already used by the Greeks in the III century b.C. Its name comes from the latin armilla (circle, bracelet), since it has a skeleton made of graduated metal circles, representing the equator, the ecliptic, meridians and parallels.