Answer:
Celestial equator.
Explanation:
The celestial equator is a strand of the celestial sphere that is essentially expanding the Earth's equater out of the celestial sphere.
In summary, the celestial equator is an extensive circle resulting from the intersection of the celestial sphere with the plane that is perpendicular to the terrestrial axis in the center of the earth. We can define it as a projection from the equator to space.
Lunar eclipses occur when the earth comes between the Sun and the Moon. This positioning quickly changes due to both the Earth and the Moon orbiting around the sun and each other.
