Bright light changed into 3 redish colored lights moving into a triangle shape.At approximately 11 p.m. local Osaka, Japan time in downtown Osaka, I was looking off my highrise apartment balcony in the direction of the southern sky to view Mars as it's coming the closest to earth in 50,000 years. Anyway, first I saw what appeared to be a small bright light moving fast from the west moving to the east, from my right to my left. It stopped, appeared to hover for only a moment before changing shape and color. From the single light it appeared to generate 3 separate redish/pale burgundy lights that moved into a kind of triangle shape. The elapsed time at this point was about 20 seconds or so. Before it sped away to the east, it reformed into a single bright light and that's everything, I did not see it again although I kept watching for another hour.