The maximum distance from the center of the galaxy that a celestial object can reach during its orbital motion within the galaxy. Generally, orbital motion within the galaxy does not form a closed shape, but shifts to fill the doughnut-shaped area surrounding the galactic center, so the apogalactic point is not necessarily a single point. → Neogalactic point Source : Heibonsha Encyclopedia About MyPedia Information |
銀河系内で天体が軌道運動をする際に到達しうる,銀河系中心からの最大距離。一般に銀河系内では軌道運動は閉じた形にならず,銀河中心を取り囲むドーナツ状の領域内を埋めるようにずれていくので,遠銀点は1点とは限らない。→近銀点
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