The great circle on the celestial sphere midway between the celestial poles
English: celestial equator, equinoctial circle, equinoctial line, equinoctial
equinoctial_lineEnglish
celestial equator, equinoctial, equinoctial circle, equinoctial line
celestial equator, equinoctial, equinoctial circle, equinoctial line
English: celestial equator, equinoctial circle, equinoctial line, equinoctial