黄道

(1)the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator; "all of the planets rotate the sun in approximately the same ecliptic"

(2)太陽の一年の明確な軌道を表している大円

(3)太陽を回る地球の軌道面

(4)赤道に対して約23度の角を作る

(1)