[AZ-Observing] Re: NGC891 in Andromeda
- From: "Jennifer Polakis" <m24@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 21 Nov 2010 12:22:29 -0700
Hi Chris,
Congratulations on another great photo.
You captured great detail of some tiny extraplanar dust clouds--The Barnards
of NGC891!
Reminds me of a miniature version of naked-eye views of our MilkyWay from
the >8,000' elevation N. Rim last summer.
However, I noticed some coma on ~20percent of the frame from the right
edge--not apparent on the rest of this field or in your 2002 ST8i photograph
of N891. Why would the coma only be on one side?
Jennifer
----- Original Message -----
From: <sam@xxxxxxxxxxx>
To: "Az-Observing List" <az-observing@xxxxxxxxxxxxx>
Sent: Saturday, November 20, 2010 7:13 PM
Subject: [AZ-Observing] Re: NGC891 in Andromeda
Very nice capture, Chris. This, and NGC4565 have got to be the best examples
of spectacular edge-on galaxies out there.
- Sam
--------------------------------------------------
From: "Chris Schur" <comets133@xxxxxxxxx>
Sent: Friday, November 19, 2010 8:51 AM
To: "Az-Observing List" <az-observing@xxxxxxxxxxxxx>
Subject: [AZ-Observing] NGC891 in Andromeda
> Hi all,
>
> I had not shot this excellent edge on galaxy since my ancient ST8i days,
> so here's a go with our latest camera, and now my best attempt yet at this
> enigmatic object. Of special note here, is that this object has a B-V
> index of nearly .9, and is one of the most dust reddened galaxies in the
> sky. Unlike an object like NGC6946 in Cygnus where the Milkyways own dust
> yellows galaxies and we have to process the image to help reduce this
> yellowing to see what the object "really" looks like, this galaxy is
> yellow because of its own equatorial dust lane material and not from our
> Milkyway. So I felt that this color here should not be "corrected" since
> this is the galaxy's true color and tells us so much about its dynamics
> and composition.
>
> http://www.schursastrophotography.com/ccdimagepages/ngc891-4.html
>
> Clear Skies,
>
> Chris
>
> Schur's Web Portal: http://www.schursastrophotography.com
>
>
>
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