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Re: (meteorobs) Bob Lunsford's Suggestions/Help & Nov. 19/20 Correction - LM, Marco Valois

Hi Paul, Marco, Lew, Norman, Bob Kim and All!  I remember recording DCV
Data on all my meteors between 1976 and about 1980.  Also recall that
Bill Gates (not the one We all know & love) had the most bizarre Data
that related to this DCV Value as He saw three to ten times the number of
meteors  that Norman and I saw on any given night of observing!
                                In Astronomical Affinity - Felix A.
Martinez

** Karl Simmons Our AMS "Meteor News" Editor would remember this also!!
**


On Sat, 6 Dec 2003 18:53:25 -0200 "Marco Valois"
<newseven@hotlink.com.br> writes:
> Hi Paul Jones and all,
> 
> As far as I can understand, the LM is very effectivity. I go under 
> its
> parameters quite often. Besides, there's no way other to observe the 
> skies,
> when the its conditions seem queer or something different from the 
> usual. I
> mean: dark skies or cloudy or more blue than never, what brings 
> certain
> efforts from the observer. And, in my opinion the most interesting
> phenomena: the angles and natural curves of the earth dome etc. So, 
> this
> vary on the most. Once it happens in, my case, I immediately go to 
> the
> explanation links to find any help. To the list, I politely argue 
> once
> overwhelmed of getting any difficult, if the better way is not 
> identifying
> the faint star nearby the stars with more LM to better come to its 
> magnitude
> under the parameters of Meteorobs, NAMN, IMO and so on. Excuse me, 
> but
> that's my experience. Good to read any subject related to this 
> aspect,
> 
> Clear skies and nice Thanksgiving to all, Marco Valois
> 
> 
> 
> ----- Original Message -----
> From: Paul Jones <jonesp0854@hotmail.com>
> To: <meteorobs@atmob.org>
> Sent: Monday, December 01, 2003 1:24 PM
> Subject: Re: (meteorobs) Bob Lunsford's Suggestions/Help & Nov. 
> 19/20
> Correction -MarcoV.
> 
> 
> > Hi all,
> >     This topic jogged an old memory in me.  Back in the seventies 
> when I
> > first got started serious meteor observing, one of the data points 
> I
> > recorded on each meteor seen was a column called DCV.  This stood 
> for
> > "Distance from Central Vision".  Haven't seen this term used or 
> recorded
> in
> > a long time.   It was a measure of how far away you saw a meteor 
> from the
> > point on the sky where you were actually looking.  Each observer 
> had an
> > average (specified in degrees) "DCV value" which was a measure of 
> that
> > person's ability to spot meteors over a large (or small) area of 
> the sky.
> > We faithfully recorded this right along with LM (we called it ZS 
> -
> zenithal
> > star) in those days.  Doing this soon showed that some observers 
> have much
> > more sensitive peripheral vision than others do.  This may be an 
> even more
> > important value that LM and is strictly based on observer 
> sensitivty and
> not
> > on sky condition.  Even under the same sky and sitting side by 
> side,
> > observers will get consistently different results .  And, one 
> established,
> > the results were very consistent from one individual to another as 
> to
> > perception capability over time.  Just thought I'd throw this out 
> for
> > discussion.  I know Norman (and maybe Bob L.) will remember this.  
> Paul in
> > FL
> >
> >
> > >From: "Marco Valois" <newseven@hotlink.com.br>
> > >Reply-To: meteorobs@atmob.org
> > >To: <meteorobs@atmob.org>
> > >Subject: Re: (meteorobs) Bob Lunsford's Suggestions/Help & Nov. 
> 19/20
> > >Correction -Marco V.
> > >Date: Sat, 29 Nov 2003 20:52:11 -0200
> > >
> > >
> > >Dear list,
> > >
> > >Good enough for the short lines explanations about LM estimatives 
> along.
> I
> > >myself, day yes day no, go a little under what the list links 
> explain,
> but,
> > >also and quite often, I do my own datae on the cluster(s) of 
> star(s)
> taking
> > >the faintest nearby star from the radiant site. Another aspect is 
> the
> > >dedication for each session time. As much as I spend observing 
> dark
> skies,
> > >as clear the faintest star(!) seems to me. Of course that it goes 
> a
> little
> > >bit against the LM procedures. Anyway, no method is still better 
> for me
> > >than
> > >that to identify different kind of stars in the Milky Way. Thanks 
> for
> this
> > >very meaningfull and subject. :)
> > >
> > >Regards,
> > >
> > >Marco Valois
> > >
> > >_________________________
> > >
> > >
> > >
> > >----- Original Message -----
> > >From: Michael Linnolt <mlinnolt@alum.mitdot edu>
> > >To: <meteorobs@atmob.org>
> > >Sent: Friday, November 28, 2003 7:20 PM
> > >Subject: Re: (meteorobs) Bob Lunsford's Suggestions/Help & Nov. 
> 19/20
> > >Correction
> > >
> > >
> > > > This is definitely a shortcoming of the current count-area 
> based LM
> > >estimating system suggested by IMO. ...
> > >
> > >
> > >
> > >The archive and Web site for our list is at 
> http://www.meteorobs.org
> > >To stop getting all email from the 'meteorobs' lists, use our 
> Webform:
> > >http://www.meteorobs.org/subscribe.html
> >
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> 
> 
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