Re: [APML] M33 Shot

["Ray Kilburn" <AuroraCEA@earthlink.net>]

Yes, Chuck was right, I am sorry for the confusion...I was following two
different threads, one on M33 and the other on M45 and got one response
confused with other.  Chuck is correct, the image is not correctly color
balanced.  I commending the author of the M45 shot for its accuracy when I
recieved Chuck's comment and somehow cross-threaded the two together.
Again, I apologize to everyone for that mistake.

*****************************************
Ray Kilburn
Culpeper, VA
USA
----- Original Message -----
From: "Matt BenDaniel" <matt@starmatt.com>
To: <astro-photo@seds.org>
Sent: Monday, October 01, 2001 12:39 PM
Subject: Re: [APML] M33 Shot


> Ray,
>
> On second look, I think Chuck is right. Please see my image of M33. A few
months
> ago, I polled the APML for opinions about the color balance of this image.
I
> responded by adjusting it to the median of what everyone thought was
right. I
> think it is fairly definitive of our collective opinion. That doesn't mean
it's
> correct, but that's our opinion.
>
> My image definitely has more green and red than yours.
>
> BTW I find the color balance of PPF to be slightly better than PJ400. I
have
> worked extensively with both.
>
> Matt
>
> http://people.ne.mediaone.net/mbendaniel/gallery/astro/m33.html
> http://flyboy999.freeyellow.com/Galxies/M33.htm
>
> Ray Kilburn wrote:
>
> > Good question for which I do not have a definitive answer other than
these
> > are hot young stars which generally appear shifted toward the blue end
of
> > the spectrum as most hot young stars do.  The optimal color for hot
burning
> > flame, say from a torch that is properly adjusted is a blue flame.
Cooler
> > burning flames are usually yellow or red.  Ionization of most
interstellar
> > gas (hydrogen) appears as green, as we see for instance when watch the
> > flames of burning wood, for example.  And we know that this region is an
> > active star factory. All that I am saying is that almost all of the
images
> > that I have viewed of this region from many different professional
> > observatories appear as this image which I think has been accurately
> > captured.   In fact, we know that blue is actually the hardest color to
> > capture and the blue detectors have to be enhanced.  So I would propose
that
> > the area is problably even bluer than we can imagine, I dunno.  I am
looking
> > as we speak to a Pleiades image taken by the  Anglo Australian
Observatory
> > from Schmidt plates take by David Malin and they look exactly like this
> > image. What do others think?
> >
> > *****************************************
> > Ray Kilburn
> > Culpeper, VA
> > USA
> > ----- Original Message -----
> > From: "Chuck Vaughn" <aa6g@aa6g.org>
> > To: <astro-photo@seds.org>
> > Sent: Monday, October 01, 2001 11:51 AM
> > Subject: Re: [APML] M33 Shot
> >
> > > Ray,
> > >
> > > Okay. Please explain to me why space would be blue in this region.
> > >
> > > Chuck <aa6g@aa6g.org>
> > >
> > > ---------------------------------------
> > >
> > > > Hmmm...I am not sure that I agree with that assessment Chuck, almost
all
> > of
> > > > the decent pictures both photogrpahic and ccd show M33 and the
> > surrounding
> > > > nebulosity as this distinct blue.  I think that this image is very
close
> > to
> > > > being true in color  balance.
> > > >
> > > > *****************************************
> > > > Ray Kilburn
> > > > Culpeper, VA
> > > > USA
> > >
> > >
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> --
> Matt BenDaniel
> http://starmatt.com
>
>
>
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