[meteorite-list] Possible Impact Event on Jupiter?

[Mark Abbott]

Has anyone heard an estimate for the size of the impactor yet.

If I recall correctly, for an object reaching Earth's surface with 
cosmic velocity, the rule of thumb is that the crater diameter is 50 
times the impactors diameter. I am guessing that factor for Jupiter's 
cloud layer is going to be much larger, being less dense.



Ron Baalke wrote:
> Space Weather News For July 19, 2009
> http://spaceweather.com
>
> JUPITER IMPACT? On July 19th, a veteran observer of Jupiter 
> in Australia photographed a fresh dark "scar" in Jupiter's 
> cloudtops; the feature resembles the Shoemaker-Levy 9 
> impacts of 1994.  It is possible that Jupiter has been 
> struck anew by an asteroid or comet.  Astrophotographers 
> around the world should train their optics on Jupiter to 
> confirm the event and monitor its progress.  
> Visit http://spaceweather.com for photos and updates.
>
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