Metallic orb in Preston lancs

I was watching a typhoon landing at Warton and, travelling opposite to it, i saw a metallic orb that was flying in a straight line, however, the orb would turn to one side, becoming “flat” and then return to the original side becoming a “ball” again. The orb itself was reflecting light and i could clearly see its movements. 
Personally, the weirdest part was how straight it was flying even when “turning” to the “flat” side. 
Unfortunately I did not take videos or puctures.