It's much more likely, I think, to have been a drawing of a high-current z-pinch aurora. See the meticulous research of Dr. Anthony Peratt: Characteristics for

It's much more likely, I think, to have been a drawing of a high-current z-pinch aurora. See the meticulous research of Dr. Anthony Peratt: Characteristics for the Occurrence of a High-Current, Z-Pinch Aurora as Recorded in Antiquity http://plasmauniverse.info/downloadsCosmo/PerattTPSv31-2003clr.pdf http://plasmauniverse.info/downloadsCosmo/PerattTPSv31-2003c... Characteristics for the Occurrence of a High-Current Z-Pinch Aurora as Recorded in Antiquity Part II: Directionality and Source http://plasmauniverse.info/downloadsCosmo/Peratt,et,al,TPSv35n4-2007.pdf http://plasmauniverse.info/downloadsCosmo/Peratt,et,al,TPSv3... More... http://plasmauniverse.info/NearEarth.html http://plasmauniverse.info/NearEarth.html