Ghost Hunting Orb Picture: Moving!

"While ghost hunting, I found this ghost orb showing up in my picture - or now ghost picture! No one had been in this bedroom for at least a half hour. I do not believe this "orb" is created from dust or reflection of light, as it is moving. Mark, a friend of mine lives here. He tells me he has heard a woman's voice within this room. The house is very old and dates back to the early 1800's...perfect place for ghost hunting."