Night of 20150331
Takahashi Mewlon
AVT G031 with exposures of less than 1000 microseconds

Invert Y to have N up and W to right

Selected exposures from 23:20 to 23:54


Two images show the progression of the shadow of Callisto on the disk over this
time period.  A third is logarithmically stretched to show Io (left) and 
Callisto (fainter, on the right).


The pdf is from XEphem at 23:45 local time.