Jupiter

Mulitple negative images were added together to form the single picture. Processed in Photoshop? using ?calculation? of the individual channels in CMYK, one channel at a time.

Note that on the limb is the moon Io. Normally the moons of Jupiter are too faint to be recorded at the same time as Jupiter itself. However, when the large gallilean moons pass in front of Jupiter's disk it is possible to steal a little of Jupiter's light in order to bring out the tiny moon.