posted on Nov, 6 2004 @ 07:20 AM
At first glance, Jupiter looks like it has a mild case of the measles. Five spots -- one colored white, one blue, and three black -- are scattered
across the upper half of the planet. Closer inspection by NASA's Hubble Space Telescope reveals that these spots are actually a rare alignment of
three of Jupiter's moons -- Io, Ganymede, and Callisto -- across the planet's face.
In this composite image from near-infrared light, the telltale signatures of this alignment are the shadows (the three black circles) cast by the
moons. Io's shadow is located just above center and to the left; Ganymede's on the planet's left edge; and Callisto's near the right edge. Only
two of the moons, however, are visible in this image. Io is the white circle in the center of the image, and Ganymede is the blue circle at upper
right. Callisto is out of the image and to the right.
Here is a link where you can see Jupiter:
And here you can download a short animation:
And another ilustration of Jupiter:
Have fun with it