celestial sphere
/səˈlɛstʃəl ˈsfɪɹ/
An imaginary ball around the earth on which the stars seem to lie.
“Astronomers map star positions on the celestial sphere using a grid of coordinates.”Add to my deck
inoh
inoh
/səˈlɛstʃəl ˈsfɪɹ/
An imaginary ball around the earth on which the stars seem to lie.
“Astronomers map star positions on the celestial sphere using a grid of coordinates.”Add to my deck