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Re: (meteorobs) Re: Some Perseid photos
Hi Bob an All
Just to keep things going here, I am kind of thinking that if the waviness
effect in the meteor image was due to atmosphere, then the stars would have
to share in the same or greater degree of turbulent motion. This effect is
certainly there in general, and is the actual cause of astronomical
"seeing", or fuzzing out of star images. Usually astronomical seeing image
displacements are less than say a few arc seconds, which at the scale of
the meteor image would appear to be much less than the waves in the meteor
trace. I'm still inclined to put the motion in the meteor trajectory
itself. I think there was a visual multiple witness fireball/meteorite
over Poland (was it Pultusk?? someone might set me straght on this-) many
years ago that was observed to make a 180 degree change in direction along
its entry trajctory. I think transverse forces can act on meteorids in
some instances, and this may be an interesting example. Just wanting to
keep the possibility open there. :)
All Best Wishes
Jim Wray
-----------------------------
At 11:37 AM 8/20/99 -0700, you wrote:
>Kevin,
>
>That faint continuation is probably real. It appears that a fragment
>survived the terminal burst and that is what you see as the faint line.
>
>As for the waviness, this was probably caused by a turbulent atmosphere.
>
>Interesting picture. Thanks for bringing it to our attention!
>
>Bob
>
>
>KevTK@aol.com wrote:
>>
>> HI All,
>>
>> In the meteor folder of AOL's astronomy BBS there is this guy who is
showing
>> his Perseid photos. I thought I would let you all in on the links so
everyone
>> could see. When you see the first one can someone tell me if thats a camera
>> artifact near the head of the meteor? The message below was written 8/16.
>> Kevin K
>> ~~~~~~~~~~~~~~~~~~~~~~~
>> Here are some quick scans of a couple shots taken Thursday night. I haven't
>> had time to correct the color properly, but I thought you might find the
>> images interesting.
>>
>> <A
>>
HREF="http://wwwdot carmelcoast.com/media/Robin/Astro/Perseids6.jpg">http://www.c
>> armelcoast.com/media/Robin/Astro/Perseids6.jpg</A>
>>
>> <A
>>
HREF="http://wwwdot carmelcoast.com/media/Robin/Astro/Perseids6detail.jpg">http:/
>> /wwwdot carmelcoast.com/media/Robin/Astro/Perseids6detail.jpg</A>
>>
>> <A
>>
HREF="http://wwwdot carmelcoast.com/media/Robin/Astro/Perseids50mm1.4.jpg">http:/
>> /wwwdot carmelcoast.com/media/Robin/Astro/Perseids50mm1.4.jpg</A>
>>
>> They were taken from the observing deck of MIRA's Oliver Observatory on
Chews
>> Ridge. I was experimenting with documenting light pollution while a friend
>> was shooting some calibration shots with the 36".
>> ~~~~~~~~~~~~
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