An observer standing on the Earth's equator visualizes the celestial equator as a semicircle passing directly overhead through the zenith. As the observer moves north (or south), the celestial equator tilts towards the southern (or northern) horizon. At the poles, the celestial equator is parallel to the horizon.
ʌ n WORD_BOUNDARY ə b z ɜː v ə ɹ WORD_BOUNDARY s t æ n d ɪ ŋ WORD_BOUNDARY ɔ n ð ɪ WORD_BOUNDARY ɜː θ z WORD_BOUNDARY ɪ k w eɪ t ə ɹ WORD_BOUNDARY v ɪ ʒ uː ə l aɪ z ɪ z WORD_BOUNDARY ð ə WORD_BOUNDARY s ə l ɛ s t j ə l WORD_BOUNDARY ɪ k w eɪ t ə ɹ ɹ WORD_BOUNDARY æ z WORD_BOUNDARY ʌ WORD_BOUNDARY s ɛ m ɪ s ɜː k ə l WORD_BOUNDARY p æ s ɪ ŋ WORD_BOUNDARY d ɪ ɹ ɛ k t l i WORD_BOUNDARY oʊ v ə ɹ h ɛ d WORD_BOUNDARY θ ɹ uː WORD_BOUNDARY ð ə WORD_BOUNDARY z iː n ɪ θ WORD_BOUNDARY æ z WORD_BOUNDARY ð ɪ WORD_BOUNDARY ə b z ɜː v ə ɹ WORD_BOUNDARY m uː v z WORD_BOUNDARY n ɔ ɹ θ WORD_BOUNDARY ɔ ɹ WORD_BOUNDARY s aʊ θ WORD_BOUNDARY ð ə WORD_BOUNDARY s ə l ɛ s t j ə l WORD_BOUNDARY ɪ k w eɪ t ə ɹ WORD_BOUNDARY t ɪ l t s WORD_BOUNDARY t ə w ɔ ɹ d z WORD_BOUNDARY ð ə WORD_BOUNDARY s ʌ ð ə ɹ n WORD_BOUNDARY ɔ ɹ WORD_BOUNDARY n ɔ ɹ ð ə ɹ n WORD_BOUNDARY h ə ɹ ɹ aɪ z ə n WORD_BOUNDARY æ t WORD_BOUNDARY ð ə WORD_BOUNDARY p oʊ l z WORD_BOUNDARY ð ə WORD_BOUNDARY s ə l ɛ s t j ə l WORD_BOUNDARY ɪ k w eɪ t ə ɹ ɹ WORD_BOUNDARY ɪ z WORD_BOUNDARY p æ ɹ ə l ɛ l WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY h ə ɹ ɹ aɪ z ə n WORD_BOUNDARY