a planet is a kind of celestial object / body & space is a mean of sun ->  earth is a kind of celestial object  earth is a kind of celestial object & a star is a kind of celestial object / celestial body & as near from an preposition increase , that preposition will appear larger -> as the distance from a star to earth decreases, the star will appear larger as the distance from a star to earth decreases, the star will appear larger  as the near from a stripe to space decreases, the stripe will appear larger & the sun is the star that is closest to earth -> the sun will appear larger than other stars because it is the closest star to earth