Re: Sat track photo
JAY RESPLER (jrespler@superlink.net)
Mon, 27 Sep 1999 00:16:54 -0400
I received these 2 comments:
Jean-François Guay wrote:
> JAY RESPLER wrote:
> > No one answered, can a refractor give diffraction patterns?
>
> Yes, a refractor produce a diffraction patterns but it will be concentrics circles around
> stars not spikes
From: Fred Burger <kh6idf@ghg.net>
To: JAY RESPLER <jrespler@superlink.net>
>No, a refractor itself will not produce any linear diffraction
>patterns, since there is nothing in the light path except the
>circular entrance aperture.
They confirm by belief that the refractor that took the photo would not
cause a diffraction pattern.
Also, aren't the trails going exactly w-e, and n-s? They are not going
left-right, up-down. It would be odd for something causing a pattern to be
offset from the vertical of the camera just enough to be aligned exactly
with the equator.
I think it has to be explained how this refractor could have caused a
diffraction pattern that looks like the photo. Otherwise we're back to
figuring which sats they are.
--
Jay Respler
--
JRespler@superlink.net
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