I traveled to outside smith's ferry on august 18th to witness eclipse. the first evening, i set up a long exposure camera shot to capture the milky way. when i returned home and reviewed the photos on the evening of the 21st, i realized that i captured an unknown object. the exposure length was set to 13 seconds. there was no light being emitted from the ground. the object left a light trail in the exposure that circled what must have been rapidly. there were no insects around that emitted light i.E. lightning bugs, etc. i have no idea what this could be. i am attaching both the original photo and a zoomed in version on the track.