I recall seeing a darker swirl emanating from the center of the GRS at
AstroFest99 (observed w/an AP 10" Mak-Cass).


"Clif" wrote:
In recent photos I have taken of Jupiter, I also see a deeper red
center in the GRS. The effect is like the pupil of an eye. The blue
spots have shown up also. I wonder if they are similar to the blue
hotspots like the one the Galileo probe fell through - clear spots
showing underlying hot cloud layers?