I was on my daily walk in the eastern suburb of Melbourne. Looking down my street I noticed a strange object flying slowly from north to south. When I first spotted the object it was directly to my east.The object was black in colour and the exact shape of a doughnut.... large circle with a hole in the centre. Generally it was moving slowly toward the south however I did notice it twice looped back to the north in a circle motion and resumed a southerly direction.Down the street from me is a police officers home and I asked him what it was as he was in his front yard. He was just as confused as myself.Taking distance into consideration the object was comparable to the size of the houses I could see at a similar distance on a hill. I took a total of 5 photos but strangely nothing showed in the photos except one photo when the object was at a distance to me.I also observed a red sphere travelling in the same direction, at a similar altitude however it was much smaller. I would guess the size of a basket ball. It did not reflect light. I took a photo as it was in line directly above a power pole to find the object but it also did not show in the photo.