Saw it from the balkony of my house clear cold night. first i thought it was a very bright shimmering star - but the colours looked strange. after 30 minutes moving very slowly in sw with very low speed in high altitude aprx. 5km it changed the direction in a about 90 degrees angle. from this time on i knew it was no star or a aircraft. after that it moved slowly in e till it disappeared over the viewfiled. intesns green/red/gold pulsating - no nummerous pattern recognized