From left to right (according to Stellarium http://www.stellarium.org )
Ganymede, Jupiter, Europa, Io, Callisto.
The effective magnification of the camera is 8 ( for a 400mm lens) X 2 X 1.4 X
1.6 (FOV factor) X ~3 (digital crop) = 67 times ( as compared to a 50mm standard lens)
My telescope I used to observe a little later when Io and Europa crossed paths
managed X44 (400mm obj and 9mm eyepiece)and was comparable in size but a lot sharper.