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Re: (meteorobs) Limiting Magnitude





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> Od: Asaf Shtull-Trauring <asafmail@yahoo.com>
> Za: Astronomer <astronomer@onelist.com>
> Zadeva: (meteorobs) Limiting Magnitude
> Datum: 16. januar 2000 18:53
> 
> I always thought that the highest limiting magnitude
> is 6.5, but after hearing observations of different
> members on the Meteor Observing Mailing List, I'm
> interested on knowing- what IS the limiting magnitude,
> and who decided it's 6.5 magnitudes if it's not?
The answer is a lound and clear NO! Most, if not every
meteor observer has experienced LMs better than +6.5
I actually have no idea where that +6.5 figure came from, 
but from my experience LM +6.5 is in the 'good' range, 
with +6.8 and better being excellent.
LMs change during the year. Because during summer, there
is much more water vapor in the air, they will be lower 
(this possibly depends on where you live and what your
climate is like). I've found that LM of +6.5 is very good 
during summer, but in winter LMs may go down to +7.0
At my site anyway... ...ask Norm and he'll probably have
different numbers...
I should point out, however, that I'm talking about LMs
in places far from the city and artificial lights. Near a city
LMs are way lower than +6.5!
Anyway, that's what I think... ...let the Great Minds of
Meteorobs tell the truth :)

Clear skies!

Jure A.
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