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Re: (meteorobs) Trains and Magnitudes
Hi Wayne!
Are you still laid "back?"
I believe you hit the nail squarely on the head!
Wayne T Hally wrote:
> Kim,
> I think you may be confusing trains with color. Most people cannot
> perceive color in meteors fainter than 2nd magnitude, due to cones (the
> color perceptors) being less sensitive to light. Trains are derived from
> speed and material, so there is no real cutoff, although as Bob said, it is
> more difficult to see fainter trains.
>
> Wayne
>
> ----------
> From: Kim S. Youmans[SMTP:ksyo@pinelanddot net]
> Sent: Friday, December 17, 1999 6:08 AM
> To: Meteorobs
> Subject: (meteorobs) Trains and Magnitudes
>
> The Geminids relative lack of trains brought back a recurring
> question that has come up occasionally while observing -- what is the
> limiting magnitude for trains? It *seems* I recall a posting in which
> it was stated that +2 was the lower limit, but my observations haven't
> born that out, so my memory must be off...either that or my magnitude
> "calibration." I'm certain I've seen a good many +3's over the past few
> months with nice trains -- and of course, that's how they were
> recorded. I thought I'd post this to the list rather than ask someone
> privately since I'm sure some other new observers out there have
> probably been wondering the same thing!
> Kim Youmans
>
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