© NYC812
Comment: This looks like it could be a fireball/comet fragment that is doing some electrical things as described by Jim McCanney. Also, looks like some of the strange comet things described by the ancients and why they called comets "serpents." The double tail then appears to be just the way this one manifested.

Also, some fireballs that travel so "leisurely" may be not be purely 'physical' objects since electrical phenomena also seem to be often transdensity (or transdimensional).