Re: (IAAC) NGC 7331 CCD Observation
In fact the galaxies around NGC7331 are not associated with it if you check
the RV's. Nor are all of them edge on. From the DSS image NGC7337 appears
close to face on. Often with faint galaxies you have to look quite hard to
see what orientation they are.
If you try using one of the high end sky charting programs such as Guide,
Megastar or SkyMap Pro then you can look at the galaxy information and it
can be quite instructive as to what galaxies are associated.
At 11:14 25/01/2002 +0000, you wrote:
> These are nice pictures are all the galaxies highlighted a part of a
> single local group. if so is it common for all galaxies in a local group
> to be orientated in the same general way IE are all these galaxies "near
> edge on galaxies". I was pondering the idea after looking at your picture
> weather galaxy groups have there own equatorial plane as it were.
> > >Original Attempt to Post Date: Sat, 24 Nov 2001 23:29:34 -0500
> > On 11/21/01 in the Washington D.C. suburb of Rockville Maryland, we had a
> > very clear evening with good seeing and not much turbulence. I took a CCD
> > image of NGC 7331. The image may be found at:
> > <a href="/bti/redirect.html?http://www.highenergyastro.homestead.com."
> target="newLink">http://www.highenergyastro.homestead.com.</a> Click on
> the thumbnail of M1 in
> > the upper right corner of the page. You will then be presented with a
> > table. Click the NGC 7331 entry in the table to view the image.
> > I have heard descriptions of NGC 7331 being a near edge on galaxy. It
> > to me that the term "near" must be a relative term, since much of the
> > structure is visible in my image.
> > I included a cut from RealSky of the eame area of sky for your comparison.
> > I imaged the field for over 1 hour to produce the image.
> > Clear Skies,
> > Steve Robinson
> > ------- End of Forwarded Message
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