Possible rocks in Amalthea orbit detected by Galileo star scanner Possible rocks in Amalthea orbit detected by Galileo star scanner Model of Galileo passing Amalthea from left to right. Galileo will pass on the far side (sunny side) of Amalthea at about 48 degrees south latitude. The gold lines indicate a pointing vector from Galileo toward some of the rocks. Length of vector indicates the relative brightness of the object. One object exists somewhere in the direction of each vector. The star scanner was only taking observations to the south. Image drawn by SOAP from the Aerospace Corporation. Part of this image is based on work by Tony Taylor of the Galileo Navigation Team.