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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