> (it is expected
> that the dust tail length will exceed 10^9 Km).
>
> Is this a misprint?
Hello David,
no, it isn't: around 2007, Jan. 20 the extension of the observable
dust tail has been extimated in the order of ~1 AU.
One month later, on 2007, Feb. 20 the dust will estend up to ~10^9 Km
(plot #2); please, remember that the dust grains are moving along
hyperbolic trajectories --> extremely high speeds!
This:
1) isn't uncommon (cometary dust normally moves out the orbit of
Pluto, if you provide it enough time)
2) it doesn't mean that we will *see* the dust tail that long (its
extremities will be extremely diluted, and the sunlight scattering at
such distances is not very effective).
(it is expected that the dust tail length will exceed 10^9 Km). Is this a misprint? David Seargent [Non-text portions of this message have been removed]...
David Seargent
seargent@...
Jan 23, 2007 11:39 pm
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frans.v.loo@...
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