Its an artifact of the camera!! For proof and explanation see:
Shot this vid till the sun was setting with the aerator in the shrimp / prawn culture pond running in the foreground.
I dont know if cameras can actually put artifacts in a fixed position next to a bright object even when the camera is moved.. if so please do let me know.
This vid had to be cut into two parts 04 part-A and 04 part-B as the vid was longer than 10mins and cant be uploaded on to the youtube.
This was shot on NOKIA N73 phone. Shot at 06:02 PM Indian Standard Time on 16th May 2009.