The celestial equator does not pass through the celestial region of any constellation.

The southern constellation and the northern constellation are bounded by the celestial equator, with the northern constellation in the north and the southern constellation in the south. Corvus corax's declination is-20, so it is a southern constellation. The celestial sphere whose equator does not pass through the constellation is Hercules. Most of the sky in Aquarius is south of the celestial equator, which passes through the northern part of Aquarius, and the ecliptic line also passes through the middle of Aquarius. There are 10 zodiac signs * *, namely Ophiuchus (winter and spring), sextant (spring), serpent (spring and summer), Ophiuchus (summer and autumn), Sagittarius (autumn), whale (autumn and winter) and Orion (winter and spring).