On 1 Aug 2003 12:40:58 -0700, (Chris.B) wrote:

It's not quite how I would describe it. The sudden arrival and
removal of detail in Jupiter's belts with each passing cloud was
immediately noticable.

I noticed the same thing while viewing Mars last week as the fog
rolled in. The decrease in brightness as a cloud passed in front of
the planet seemed to bring out some detail. Later in the night after
the fog passed I used the Sirius Optics NPC for a similar effect.

Al Hall