--- "Don J. Colton" <djcolton@piol.com> wrote:
The Sun is a variable star, thankfully not too variable.
I understand there is a similar effect tied to solar insolation on the redness of the Great Red Spot (GRS). The redness of the varies on a 30 year cycle tied to the solar cycle, but over the centuries, let's say since Cassini, Haley and Herschel, its redness has declined. I've forgotten the mechanism of action. I seem to recall that the redness of the GRS was a chemical smog phenomena - the more instense sunlight breaks up the red light chemical that accumulates in the upper Jovian atmosphere. Or was it the over way around? Maybe it's time to rename the GRS to the "Great Salmon-Colored Spot". - Canopus56(Kurt) __________________________________________ Yahoo! DSL Â Something to write home about. Just $16.99/mo. or less. dsl.yahoo.com