π«πβ¨
βοΈπβ¨πβ¨πͺβοΈ
ββοΈποΈπ
βοΈπβοΈπΊοΈ
ππ«πͺβ¨
ππ³οΈβ
πβͺοΈβΏπͺ
#armillary sphere #geocentric model #celestial sphere #ptolemaic system