銀ぎん経けいぎんけいMeanings1noungalactic longitudeTechnical term in astronomy; the angular distance measured eastward along the galactic equator from the galactic center.銀ぎん経けい0度どは銀ぎん河が中ちゅう心しんの方ほう向こうを示しめす。Galactic longitude 0 degrees indicates the direction of the galactic center.
