So i was walking outside my college in grimsby, england. as i was walking walking out i looked at the moon and thought how cool the moon looked. then i saw this very star like object in the sky which was very very high up and was moving quite slowly. it looked exactly like a big star.I realised it wasn't a star or any kind of aircraft by how it moved. it looked exactly like a star but moved in a weird way. it'd often go up and down changing heights and was heading west but it still remained quite slow. unfortunately as i tried to look at it more the light just disappeared. i moved myself away from street lights but i looked up and it was gone.