PIA23608: A Sixth Cyclone Has Joined the Configuration of Circumpolar Cyclones at Jupiter's South Pole
 Target Name:  Jupiter
 Is a satellite of:  Sol (our sun)
 Mission:  Juno
 Spacecraft:  Juno
 Instrument:  JunoCam
 Product Size:  1800 x 1800 pixels (w x h)
 Produced By:  SwRI
 Full-Res TIFF:  PIA23608.tif (9.724 MB)
 Full-Res JPEG:  PIA23608.jpg (388.2 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

Click here for larger image of PIA23608
Figure 1
Click on image for larger version

A series of JunoCam images from Juno's 23rd close pass by Jupiter (Perijove 23) on Nov. 3, 2019 has revealed a sixth circumpolar cyclone in the cluster around Jupiter's south pole. A single cyclone is located close to the geographic south pole, and until now it has been surrounded by five cyclones. The five cyclones were discovered in images acquired early in the Juno mission, but their positioning was never a perfect pentagon. There was always a gap between cyclones 1 and 2 that varied in extent. Now number six has drifted into that gap, forming a nearly-perfect pentagon. The new cyclone had been observed previously nearby.

Close examination at high resolution (figure 1) reveals cyclonic motion in the dark center. The dark core is 870 miles (1,400 kilometers across), with the bright outer ring at 1,200 miles (2,000 kilometers) in diameter.

Will it stay or drift out again? Scientists are looking forward to seeing images from the next close pass!

JunoCam's raw images are available for the public to peruse and process into image products at

More information about Juno is at http://www.nasa.gov/juno and http://missionjuno.swri.edu.

Image Credit:

Image Addition Date: