(meteorobs) Large fireball over New Mexico Oct 9, 2009
Thomas Ashcraft
ashcraft at heliotown.com
Fri Oct 9 23:53:42 EDT 2009
Larry wrote:
> Thomas, that looks a (LOT) brighter than the moon!. What is the peak light
> graph amplitude in pixels?.......30,000 ?
>
> I suspect it was as bright as the Sun!!!!
>
>
Larry,
I might be wrong but my understanding of fireball magnitude is that you
assess the bright core of the meteor without necessarily factoring in
the fainter surrounding flash. Maybe a magnitude expert could address
this question? At least in this specimen the Moon is in close proximity
to the fireball and it is a known magnitude of -10.92 at that exact
moment ( without extenuating factors which might bump the mag higher in
this case due to altitude, atmospheric extinction and other possible
factors).
Thomas
>>
>> http://www.heliotown.com/Fireball_20091009_Ashcraft.html
>>
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