Jupiter Moon Transit, January 24, 2015 (06:28 UT)

Three moons and their shadows parade across Jupiter at the start of the event at 06:28 UT on January 24, 2015. From left to right the moons Callisto and Io are above Jupiter's cloud tops. The shadows from Europa (not seen in the image), Callisto, and Io are strung out from left to right.

About the colours

These images are composites of separate exposures acquired by the WFC3 instrument on the Hubble Space Telescope. Several filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue: F395N (395 nm) Green: F502N (502 nm) Red: F631N (631 nm)

About the data

The image was created from Hubble data from the following proposal: 14042 PI: Z. Levay (STScI), K. Noll (NASA/GSFC), M. Mutchler, J. Mack, L. Frattare, C. Christian, M. Livio, and S. Meyett (Hubble Heritage Team, STScI/AURA), A. Roman (STScI), A. Simon (NASA/GSFC), M.H. Wong (University of California, Berkeley), and R. Landis (NASA/JSC).