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News Release 50 of 192

July 17, 2008 09:00 AM (EDT)

News Release Number: STScI-2008-27

Three Red Spots Mix it Up on Jupiter


Image: Three Red Spots Mix It Up on Jupiter

Three Red Spots Mix It Up on JupiterSTScI-PRC2008-27

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This sequence of Hubble Space Telescope images offers an unprecedented view of a planetary game of Pac-Man among three red spots clustered together in Jupiter's atmosphere.

The time series shows the passage of the "Red Spot Jr." in a band of clouds below (south) of the Great Red Spot (GRS). "Red Spot Jr." first appeared on Jupiter in early 2006 when a previously white storm turned red. This is the second time, since turning red, it has skirted past its big brother apparently unscathed.

But this is not the fate of "baby red spot," which is in the same latitudinal band as the GRS. This new red spot first appeared earlier this year. The baby red spot gets ever closer to the GRS in this picture sequence until it is caught up in the anticyclonic spin of the GRS. In the final image the baby spot is deformed and pale in color and has been spun to the right (east) of the GRS. (Amateur astronomers' observations confirm that this is the baby spot that migrated around the GRS.) The prediction is that the baby spot will now get pulled back into the GRS "Cuisinart" and disappear for good. This is one possible mechanism that has powered and sustained the GRS for at least 150 years.

These three natural-color Jupiter images were made from data acquired on May 15, June 28, and July 8, 2008, by the Wide Field Planetary Camera 2 (WFPC2). Each one covers 58 degrees of Jovian latitude and 70 degrees of longitude (centered on 5 degrees South latitude and 110, 121, and 121 degrees West longitude, respectively).

For additional information, contact:

Ray Villard
Space Telescope Science Institute, Baltimore, Md.

Amy Simon-Miller
NASA Goddard Space Flight Center, Greenbelt, Md.

Object Name: Jupiter

Image Type: Astronomical/Annotated

Credit: NASA, ESA, A. Simon-Miller (Goddard Space Flight Center), N. Chanover (New Mexico State University), and G. Orton (Jet Propulsion Laboratory)


The above montage includes these images:

Jupiter - May 15, 2008 Image Type: Astronomical Jupiter - May 15, 2008 Jupiter - June 28, 2008 Image Type: Astronomical Jupiter - June 28, 2008 Jupiter - July 8, 2008 Image Type: Astronomical Jupiter - July 8, 2008

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